#  @tatexpressinc TAT Express Inc. TAT Express Inc. posts on YouTube about express, volvo, how to, flow the most. They currently have [-------] followers and [---] posts still getting attention that total [-----] engagements in the last [--] hours. ### Engagements: [-----] [#](/creator/youtube::UC2_kUOrLaSYUt96xvTPvWlg/interactions)  - [--] Week [------] +97% - [--] Month [-------] -51% - [--] Months [---------] +44% - [--] Year [---------] +351% ### Mentions: [--] [#](/creator/youtube::UC2_kUOrLaSYUt96xvTPvWlg/posts_active)  - [--] Week [--] +51% - [--] Month [---] +27% - [--] Months [---] +38% - [--] Year [---] +710% ### Followers: [-------] [#](/creator/youtube::UC2_kUOrLaSYUt96xvTPvWlg/followers)  - [--] Week [-------] no change - [--] Month [-------] no change - [--] Months [-------] +0.61% - [--] Year [-------] +1.50% ### CreatorRank: [-------] [#](/creator/youtube::UC2_kUOrLaSYUt96xvTPvWlg/influencer_rank)  ### Social Influence **Social category influence** [automotive brands](/list/automotive-brands) 11.03% [stocks](/list/stocks) 6.62% [technology brands](/list/technology-brands) 2.21% [countries](/list/countries) 0.74% [finance](/list/finance) 0.74% [social networks](/list/social-networks) 0.74% **Social topic influence** [express](/topic/express) #721, [volvo](/topic/volvo) 11.03%, [how to](/topic/how-to) 6.62%, [flow](/topic/flow) 5.88%, [matter](/topic/matter) 5.88%, [systems](/topic/systems) 5.15%, [gas](/topic/gas) 5.15%, [metal](/topic/metal) 3.68%, [tat](/topic/tat) 3.68%, [belt](/topic/belt) 2.94% **Top accounts mentioned or mentioned by** [@tatexpressinccom](/creator/undefined) [@tatexpress](/creator/undefined) **Top assets mentioned** [Alphabet Inc Class A (GOOGL)](/topic/$googl) ### Top Social Posts Top posts by engagements in the last [--] hours "Modern Diesel Engines Arent Forgiving Modern diesel engines are reliable but theyre not forgiving. Most failures dont start as catastrophic events. They start with fuel contamination skipped maintenance and excess heat. Over time that leads to: Low compression Low power Hard starts Expensive teardowns By the time you feel the problem the damage has already been happening. Maintenance isnt optional on modern engines. Its what keeps repairs from turning into rebuilds. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:" [YouTube Link](https://youtube.com/watch?v=3MLxExaKJwo) 2026-02-11T12:00Z 330K followers, [----] engagements "ITS NOT THE BELT Most drivers blame the belt but thats usually not what fails first. What actually wears out: Tensioners Idler pulleys Bearings Damper alignment These parts slowly lose tension and stability over hundreds of thousands of miles. The belt starts slipping just a little. It overheats. It loses grip. The engine still runs so the driver keeps going. Until coolant flow drops and thats when the real damage begins. 🎥 Full breakdown here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:" [YouTube Link](https://youtube.com/watch?v=4DN_twKjNJ8) 2026-02-06T01:00Z 330K followers, [----] engagements "Best diagnose tool for semi trucks/ best scan tool for semi trucks/best semi truck diagnostic tool. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Best diagnose tool for semi trucksbest scan tool for semi trucksbest semi truck diagnostic toolheavy duty truck scan toolscan tooltruck drivercheck enginetruck drivingtrucking industrysemi truckowner operatorbest heavy duty truck scanner 2023heavy duty truck scanner softwareheavy duty truckscan big trucksdiagnostic toolbest diagnostic tool for truckswhich scan toolheavy dutyheavy" [YouTube Link](https://youtube.com/watch?v=8itvRd8O6hA) 2023-06-25T17:15Z 330K followers, 84.9K engagements "Clearing Fault Codes Can Cost You Thousands on a Diesel Truck Clearing fault codes might get you back on the road temporarily but on modern diesel trucks it often hides the real problem and leads to much more expensive failures. Derates and warning codes exist for a reason. When codes are cleared without fixing the root cause heat soot fuel and airflow issues continue to build and damage accelerates. In this video I explain: Why clearing codes doesnt fix the problem How ignored warnings turn into major repairs What drivers should do before clearing any faults How to protect your engine and" [YouTube Link](https://youtube.com/watch?v=KpCMjTujMFo) 2026-02-12T01:00Z 330K followers, [---] engagements "18 Wheeler DOT Inspection check list Semi Air Brake Inspection Roadside inspection for CMV Driver. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] In this video I go over an [--] wheeler DOT Inspection which includes the semi air brake system inspection semi truck exhaust leaks and steering mechanism. If you have a CDL driving license or taking a CDL driving test knowing about a DOT inspection can put you at an advantage. The video covers the inspection procedures for checking the brake system service brakes parking brake" [YouTube Link](https://youtube.com/watch?v=P-FKCHAncQU) 2020-06-25T00:00Z 330K followers, 1.6M engagements "🚛 Overhead Valve Adjustment on a Paccar MX-13 🛠⚙ A proper valve adjustment is key to keeping your Paccar MX-13 running smoothly and efficiently. Over time valve lash can drift out of spec causing performance issues poor fuel economy and even engine damage if left unchecked. 🔧 Why is an overhead valve adjustment important ✅ Ensures proper valve timing and fuel injection ✅ Prevents hard starts rough idling and misfires ✅ Reduces excessive wear on rocker arms and cam lobes ✅ Maximizes fuel efficiency and engine power 🚨 Signs your MX-13 may need a valve adjustment: ❌ Ticking or knocking noise" [YouTube Link](https://youtube.com/watch?v=g0IkVaNQBss) 2025-03-07T19:24Z 330K followers, 24K engagements "🚨 Modern Diesels Dont Fail Loudly They Fail Silent Let me show you what I mean. On modern diesel engines Detroit Cummins Volvo PACCAR there are multiple systems that can damage the engine without triggering a shutdown. No alarms. No dramatic failure. Just slow silent damage while the truck keeps running. Thats why we see engines come in running fine and leave needing major internal repairs. This clip is part of the full breakdown explaining: Which systems cause silent damage Why ECMs dont always protect the engine What drivers should watch for before its too late 👉 Watch the full video" [YouTube Link](https://youtube.com/watch?v=iHv-14fyEvU) 2026-01-30T03:00Z 330K followers, [----] engagements "Clearing Codes Is What Really Kills Trucks The warning light isnt the problem its the message. Clearing codes forcing regens or resetting derates without fixing the cause only accelerates damage to: Sensors DPF and SCR components Turbo and engine hardware Derates arent fun but ignoring them turns small problems into major repairs. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps: https://maps.app.goo.gl/ab7MssTdanWNQgea6 If your truck is throwing regen or derate warnings call before the system fails. #DieselRepair #RegenProblems #Derate" [YouTube Link](https://youtube.com/watch?v=Ee7cfMFJeTg) 2026-02-11T05:00Z 330K followers, [----] engagements "How to Replace A Wheel Seal on Semi/ Wheel Seal Leak/ Wheel Seal Installation/100kMiles Inspections New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice Technician" [YouTube Link](https://youtube.com/watch?v=Ii2FA0yImcw) 2020-07-26T23:00Z 330K followers, 498.6K engagements "Paccar MX13 Excessive Coolant Pressure. How to Avoid Air Compressor Failure. Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell" [YouTube Link](https://youtube.com/watch?v=VohzAwjtUL0) 2024-10-27T15:41Z 330K followers, 25K engagements "🛞 Whats a Kingpin 🔍 Semi Truck Front End Explained 🧰🛠 Wondering what a kingpin is and why its so critical to your trucks steering and safety In this video we break down: What a kingpin does 🧩 Signs of wear and excessive play ⚠ Proper inspection methods using dial indicators 🧪 Maintenance tips to avoid costly front-end repairs 💵 What happens when it fails 😬 Whether you're a fleet owner or an owner-operator knowing how to maintain your kingpins can save you thousands and keep your rig tracking straight down the highway. 📍 TAT Express [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 🌐" [YouTube Link](https://youtube.com/watch?v=WfoQ4T-bBys) 2025-07-23T00:00Z 330K followers, 63.4K engagements "Series 60/ Series [--] Detroit Diesel/ Vs/ DD15/ DD15 Detroit Diesel/ DD15 vs Series 60/ Which one New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Series 60/ Series [--] Detroit Diesel/ Vs/ DD15/ DD15 Detroit Diesel/ DD15 vs Series 60/ Which one In this video I will discuss the Detroit [--] series vs. the new DD15. I will break it down into three sections performance reliability and cost for repairs. So if you are currently in the market for a semi and can not decide which engine to choose or own either platform this video is for" [YouTube Link](https://youtube.com/watch?v=mvcGoVsdn2o) 2021-09-25T22:23Z 330K followers, 176.6K engagements "Common Issues D13 Volvo/ Volvo trucks Volvo D13/ D13 Engine Problems/ Semi Truck/ PT 6/ #tatexpress Full Video https://youtu.be/nspV1ZtqP4A New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice" [YouTube Link](https://youtube.com/watch?v=pbOrYNWJdWQ) 2023-04-27T20:37Z 330K followers, 33.9K engagements "Block off plate on EGR crossover tube. Why deletes do not work and are not safe for your engine. The truth about semi deletes/Semi truck delete/diesel engine deletes/diesel delete explained https://youtu.be/BjjMdK97bvM New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] The truth about semi deletesSemi truck deletediesel engine deletesdiesel delete explaineddpf deleteegr deletediesel deleteemissions deletedd15 delete dpfdiesel tuningdpf removalhow tosemi truck deletedd15 deleteshould i delete my diesel the truth about diesel" [YouTube Link](https://youtube.com/watch?v=sAhesl3ZfSU) 2023-11-01T19:00Z 330K followers, 124.4K engagements "Do Not Delete your Semi/ Do NOT delete your Semi/ Three Reasons Not to Delete your Semi/ DPF Deletes New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Do Not Delete your Semi/ Do NOT delete your Semi/ Three Reasons Not to Delete your Semi/ DPF Deletes I will discuss three reasons why you should not delete your semi and at the end of the video I will address some of the common misconceptions. dpf deletedelete egregr deleteemissions deletediesel deletehow todpf delete semi truckdiesel tuningshould i delete my diesel the truth" [YouTube Link](https://youtube.com/watch?v=vaP34LuHkZM) 2021-12-04T01:27Z 330K followers, 190.1K engagements "💨🔧 Boost Leaks Found on Intake System Cummins B6.7 Engine Diagnostic 🔧💨 💨🔧 Boost Leaks Found on Intake System Cummins B6.7 Engine Diagnostic 🔧💨 During inspection on this Cummins B6.7 engine our specialist tech identified boost leaks on the intake side of the system. The intake system is responsible for delivering compressed air from the turbocharger into the engine and when leaks are present the engine cannot receive the air pressure it needs to operate efficiently. 💡 Why intake boost leaks are a serious concern: Turbocharged diesel engines depend on sealed intake components to" [YouTube Link](https://youtube.com/watch?v=2M56atuFdps) 2026-02-05T16:30Z 330K followers, [----] engagements "Long or Failed Regen Dont Keep Driving It Long or incomplete regens arent random and they dont fix themselves. If your truck is dealing with: Long regens Frequent regens Incomplete regens Aftertreatment warnings or derates Driving it clearing codes or forcing regens only makes the damage worse. Get it checked before the one-box sensors or engine components fail. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps: https://maps.app.goo.gl/ab7MssTdanWNQgea6 If your truck is stuck in regen or derate call us and get it diagnosed the right way." [YouTube Link](https://youtube.com/watch?v=8UkoZjI5K5U) 2026-02-07T05:00Z 330K followers, [----] engagements "🔥⛽ Injector [--] Carbon Buildup Found D13 Engine Inspection ⛽🔥 🔥⛽ Injector [--] Carbon Buildup Found D13 Engine Inspection ⛽🔥 During inspection on this D13 engine our specialist tech identified Injector [--] with carbon buildup past the sealing surface of the injector cup. This condition indicates that combustion gases are escaping where the injector should be properly sealed a problem that can affect engine performance and long-term reliability. 💡 Why carbon past the injector cup seal is a concern: The injector cup creates a tight seal between the injector and the cylinder head. When that seal" [YouTube Link](https://youtube.com/watch?v=99_12WCAxU8) 2026-02-03T14:23Z 330K followers, [----] engagements "NO CODES. ENGINE DAMAGE. A slipping or failed belt doesnt just strand you it can silently destroy an engine under load. When coolant stops moving: Metal temps spike Cylinder liners overheat Heads warp EGR coolers crack Head gaskets let go Thats how a running truck turns into a $30000 engine failure. This is why belt condition tension and cooling system health matter more than most drivers realize. 🎥 Watch the full breakdown here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:" [YouTube Link](https://youtube.com/watch?v=Cfc2R2I8JCs) 2026-02-05T01:00Z 330K followers, [----] engagements "🔋❄ Thermo King APU Alternator Voltage Inspection ❄🔋 🔋❄ Thermo King APU Alternator Voltage Inspection ❄🔋 During inspection on this Thermo King APU our specialist tech performed a voltage output test on the APU alternator to verify that its charging correctly and supplying proper power to the batteries and APU system. Alternator voltage is critical for reliable APU operation especially when the truck is parked and relying on the APU for power. 💡 Why alternator voltage inspection matters: Ensures the APU is properly charging the batteries Prevents battery drain while parked Supports" [YouTube Link](https://youtube.com/watch?v=EODHGw14E68) 2026-02-04T17:41Z 330K followers, [----] engagements "🫧⛽ Air-in-Fuel System Test Bubbles Detected D13 Engine ⛽🫧 🫧⛽ Air-in-Fuel System Test Bubbles Detected D13 Engine ⛽🫧 During diagnostic testing on this D13 engine our specialist tech performed an air-in-fuel system test. As shown in the video air bubbles were present in the fuel supply confirming that air is entering the fuel system where it shouldnt. 💡 Why air in the fuel system is a problem: Diesel fuel systems are designed to operate under precise pressure. When air enters the system it disrupts fuel delivery causing inconsistent pressure and poor combustion. ⚙ Common causes of air" [YouTube Link](https://youtube.com/watch?v=ERS9bQB1A7Q) 2026-01-30T19:37Z 330K followers, [----] engagements "🔍🛠 Injector Visual Inspection Completed D13 Engine 🛠🔍 🔍🛠 Injector Visual Inspection Completed D13 Engine 🛠🔍 During a detailed inspection on this D13 engine our specialist tech performed a visual inspection of injectors [--] [--] and [--]. As shown no carbon buildup was found around the injector bodies or sealing areas which is a great indicator of proper combustion and sealing inside the cylinders. 💡 Why inspecting injectors matters: Carbon buildup around injectors can be a sign of leaking injector cups poor sealing combustion issues or early engine damage. Catching these issues early helps" [YouTube Link](https://youtube.com/watch?v=H5ob5fpz61g) 2026-02-04T16:23Z 330K followers, [----] engagements "$60 PART. $40K ENGINE. By [------------] miles belts tensioners and idlers are no longer just maintenance. Theyre risk management. Because a $300 tensioner or a $60 belt is protecting a $40000 engine. We see it all the time the engine still runs so nothing feels urgent until coolant flow drops and the damage is already done. This is why belt systems need to be evaluated as a complete system not just a belt swap. 🎥 Full explanation here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:" [YouTube Link](https://youtube.com/watch?v=LGQVuhCcJ_E) 2026-02-07T01:00Z 330K followers, [----] engagements "🔧🚛 Grinding PTO Noise Gear Damage Found 💥🛠 Customer came in reporting a grinding noise when engaging their PTO. 🔊 The unit was also leaking oil and once removed we found internal gear damage inside the PTO. ❌ Metal wear ❌ Leaking housing ❌ Failed gear mesh This PTO needs to be replaced before it causes further driveline damage. If youre hearing grinding dont wait its only going to get worse. 📍 TAT Express Inc. [----] Langdon Rd Dallas TX 📞 Call: 972-225-3017 🛠 Keeping You Rolling #PTODamage #GrindingNoise #SemiTruckRepair #DrivelineRepair #DieselTruckTech #PreventiveMaintenance" [YouTube Link](https://youtube.com/watch?v=OLZ9h7tz1Rw) 2025-04-16T22:27Z 330K followers, [----] engagements "🛢 Fuel Dilution The Silent Engine Killer Heres what silent engine damage actually looks like. Fuel can leak past the injectors and into the cylinders. That fuel washes the oil off the cylinder walls thins the engine oil and starts destroying: Piston rings Bearings Cylinder walls And the scariest part Theres often no immediate fault code to warn the driver. By the time symptoms show up the damage is already done. This clip is from the full video where I break down: How fuel dilution happens Why ECMs dont always catch it What early warning signs drivers miss 👉 Watch the full breakdown here:" [YouTube Link](https://youtube.com/watch?v=SHZdxgm6h4c) 2026-01-30T15:25Z 330K followers, [----] engagements "The presence of smoke coming from a semi-truck engine could potentially indicate serious issues" [YouTube Link](https://youtube.com/watch?v=Vp9MVD0cg9U) 2023-08-22T14:56Z 330K followers, 29K engagements "Removing a semi truck tire from the rim. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice Technician https://tatexpressinc.com/apprentice-technician/ Tirereplacementtire repair18" [YouTube Link](https://youtube.com/watch?v=Wby_xyN5HWI) 2023-06-05T15:22Z 330K followers, 73.9K engagements "Boost leak. How to find boost leak. Turbo boost leak. Loss of power. #diesel #mechanic Ensure peak performance and reliability for your semi-truck fleet with our expert routine maintenance services experience smoother rides increased fuel efficiency and minimized downtime keeping your business on the road to success Keep on Truckin' with Top-Notch Service https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Boost leak.How to find boost leakTurbo boost leakLoss of powerboost leak" [YouTube Link](https://youtube.com/watch?v=b5RH5g-nu7Y) 2024-01-12T20:00Z 330K followers, 143.5K engagements "White Smoke & Misfire on Startup Cummins N14 This is a cold start on a Cummins N14 with the exhaust manifold removed. You can clearly see: A startup misfire White smoke present Smoke concentrated at cylinder #1 White smoke on startup can point to fueling injector or combustion issues especially when one cylinder stands out from the rest. This is why visual inspection and proper diagnostics matter before throwing parts at an engine. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 If your truck is hard starting misfiring or smoking on cold starts get it" [YouTube Link](https://youtube.com/watch?v=bUNa2vU72P8) 2026-02-07T21:48Z 330K followers, 14.4K engagements "⚠💨 Cummins 6.7L EGR Codes Caused by Intake Tube Leak (EGR Checked Clean) 🚛🛠 This Cummins 6.7L came in with EGR fault codes but the issue wasnt the EGR valve itself. 🔎 Our tech found a large hole in the inlet tube feeding the air compressor which ties into the intake system. This unmetered air tricked the ECM and caused false EGR codes. 🧹 To confirm we also inspected the EGR components for soot buildup they were clean and free of restrictions. ✅ After replacing the damaged inlet tube the system was tested and the codes cleared. 👉 This repair shows why diagnostics matter: EGR codes dont" [YouTube Link](https://youtube.com/watch?v=hp1U3-au600) 2025-08-30T16:03Z 330K followers, [----] engagements "How to check suspension on a semi/ How to check my suspension/ How to know suspension problems semi New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] How to check suspension on a semi/ How to check my suspension/ How to know suspension problems semi owner operatorhow toowner operator truckersHow to check suspension on a semiHow to check my suspensionHow to know suspension problems semihow to check my suspensionhow to know if suspension needs replacinghow to know suspension is baddd15 detroit dieselfreightliner" [YouTube Link](https://youtube.com/watch?v=inpmi-9QeqY) 2022-12-13T01:23Z 330K followers, 69.2K engagements "How to check oil in semi truck/ How to check oil level in truck/ What is correct oil level in truck New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] How to check oil in semi-truck/ How to check oil level in truck/ What is correct oil level in truck How to check oil in semi-truckHow to check oil level in truckWhat is correct oil level in truckhow toengine oiloil changeengine oil leakengine oil explainedhow to check oil in semi truckoil change gone wronghow to check engine oil level in volvo truckhow to check oil in" [YouTube Link](https://youtube.com/watch?v=kpV_-7H9u7c) 2023-01-01T16:00Z 330K followers, 76.7K engagements "🚨 This $60 Belt Can Kill a $40000 DD15 Engine If you own a DD15 this is one of the most important things you need to know. Theres a simple belt-driven component on these engines that can shut off coolant flow without setting a single fault code. No warning lights. No derate. Just rising engine temps and internal damage. We see this turn into overheated heads scored liners and full engine failures that couldve been prevented with a basic inspection. 👉 Watch the full breakdown here: https://youtu.be/nJsdAI2xokI If youre seeing overheating pressure issues or unexplained coolant problems get it" [YouTube Link](https://youtube.com/watch?v=leDXhZnr9xE) 2026-01-31T03:00Z 330K followers, [----] engagements "🔍⛽ Injector Cup Inspection D13 Engine Diagnostic ⛽🔍 🔍⛽ Injector Cup Inspection D13 Engine Diagnostic ⛽🔍 During inspection on this D13 engine our specialist tech performed a close inspection of the injector cups to verify proper sealing and rule out any combustion gas or fuel leakage into the cooling and fuel systems. 💡 What injector cups do: Injector cups act as a sealed barrier between the injector and the cylinder head. They prevent combustion gases fuel and coolant from mixing making them a critical component for engine performance and durability. ⚙ Why injector cup inspections are" [YouTube Link](https://youtube.com/watch?v=qWv3iO4oYiY) 2026-02-03T14:31Z 330K followers, [----] engagements "🚨🚛 LOW COOLANT-SEMI TRUCK Coolant damage doesnt always happen the way drivers expect. Warning lights dont always come first. Shutdowns dont always prevent damage. And it never overheated doesnt always mean the engine is safe. Coolant temperature is measured at limited points while coolant flow travels through the engine in stages. When flow is reduced from leaks low coolant air pockets circulation issues or component failures localized overheating can begin before the dash shows anything abnormal. Thats why engines can suffer damage even when: Coolant loss seemed minor The engine shut" [YouTube Link](https://youtube.com/watch?v=r8ySIKKAPlY) 2026-02-06T01:01Z 330K followers, [---] engagements "🔥🌫 EGR System Found Clogged Performance & Emissions Risk 🌫🔥 🔥🌫 EGR System Found Clogged Performance & Emissions Risk 🌫🔥 During inspection our specialist tech found the EGR (Exhaust Gas Recirculation) system clogged with soot buildup. The EGR system plays a major role in controlling engine emissions and maintaining proper combustion temperatures. When it becomes restricted it can negatively impact engine performance and fuel efficiency. 💡 Why a clogged EGR system matters: The EGR system recirculates a portion of exhaust gases back into the engine to help reduce combustion temperatures" [YouTube Link](https://youtube.com/watch?v=ycATtp_JG78) 2026-02-05T15:37Z 330K followers, [----] engagements "🚛🔧 Mack MP8 Back in Action After Belt & Tensioner Replacement ⚙✅ Fresh off the lift this Mack MP8 is running smooth after a new belt & tensioner install. At TAT Express we perform Quality Control Checks on every unit before it leaves the shop to ensure your truck is road-ready and reliable. 💡 Pro Tip: Replace belts and tensioners every [--] years and inspect at every PM service to avoid roadside breakdowns. 📍 TAT Express Dallas TX Your go-to shop for Semi-Truck Repair Diesel Diagnostics Preventative Maintenance 📞 Call Today: 972-225-3017 📍 Visit Us: [----] Langdon Rd Dallas TX [-----] Google" [YouTube Link](https://youtube.com/watch?v=wlDYBLR9O08) 2025-08-12T19:04Z 328K followers, [----] engagements "🔧💨 Smooth Idle After V-Pod Replacement on a Series [--] Detroit 🛻🔥 If your Series [--] Detroit is idling rough surging or losing boostdont overlook the V-Pod actuator. This small but critical component controls turbo response and is a common failure point on this engine platform. In this clip we just finished replacing the V-Pod and the engine is back to smooth steady operation. No more hesitation no more erratic boost control. 💪 🧰 Common symptoms of a bad V-Pod: Inconsistent turbo boost Poor throttle response Fault codes related to boost control Down on power 📞 Dont wait until it fails" [YouTube Link](https://youtube.com/watch?v=wmCKfaS1H9A) 2025-07-10T19:58Z 328K followers, [----] engagements "🚨 Volvo D13 Hard Start Dont Ignore the Warning Signs 🔧 This Volvo D13 struggled to startand that hesitation isnt just annoying. Its a symptom of deeper issues that need to be diagnosed before youre stuck roadside. Common causes of hard starts on the D13 include: 🔸 Weak fuel pressure or failing fuel pump 🔸 Air in the fuel system 🔸 Failing injectors or quantity control valve 🔸 Low battery voltage or poor connections 🔸 Faulty cam or crank sensors In this raw clip youll see what a real hard start looks like. If your truck sounds like this its time for a full diagnostic before it leaves you" [YouTube Link](https://youtube.com/watch?v=x2WpEBMPfeY) 2025-06-12T18:50Z 327K followers, [----] engagements "🧠🧩 Cam Cap Placement Dont Mix These Up ⚠🔧 In this clip the tech is checking that the cam caps are installed in their correct positions during a cam housing replacement on a DD15. Cam caps are machined in place at the factory and are not interchangeable. ❌ Incorrect cap placement = improper clearance ❌ Can cause camshaft binding and damage ❌ Leads to premature wear or total failure ✅ Always verify cap markings match the housing position 💡 When replacing a cam housing or performing top-end work its critical to reinstall each cap exactly where it came from. Even slight mismatches can ruin a" [YouTube Link](https://youtube.com/watch?v=x6VBsHCkiBQ) 2025-04-19T16:28Z 326K followers, [----] engagements "Common Issues On Semi Trucks/ What to Check When Buying a Semi-Truck/ Buying A Semi Truck COMMON ISSUES ON A SEMI TRUCK In this video we dive into the most common issues that every semi-truck driver or owner should be aware of. From engine problems to electrical faults and everything in between we break down each issue explain the symptoms and offer practical solutions to keep your rig running smoothly. Whether youre on the road or in the shop this guide is essential for anyone who wants to avoid costly breakdowns and downtime. Dont forget to like subscribe and hit the bell icon for more" [YouTube Link](https://youtube.com/watch?v=xALgq7mmBEY) 2024-08-22T02:00Z 324K followers, 49.7K engagements "🛠🚛⚠ Major Issues Found During Routine Service This Couldve Ended Badly 🛠🚛⚠ This semi came in for regular service but during our courtesy inspection we found multiple hidden failures that couldve led to major problems on the road: 🔧 What we found: ❌ Large air leaks at fittings on the air supply tanks ❌ Chaffed ABS wire triggering ABS faults ❌ Broken interaxle air supply line ❌ Cracked oil filter stand pipe a serious risk for oil pressure loss 🛠 Why this matters: These kinds of issues can sneak up and cause breakdowns derates or even safety violations A proper inspection can catch them" [YouTube Link](https://youtube.com/watch?v=xAwu-k3RykY) 2025-04-10T00:30Z 326K followers, [----] engagements "🛞💧 Hidden Wheel Seal Failures Dont Miss These 🔍🚛 In this clip we highlight a failed wheel seal that wasnt obvious at first glance. These kinds of leaks can be hard to spot unless you get under the truck and inspect closely. Ignoring them leads to bigger problems like brake contamination bearing failure and DOT violations. ❌ Oil seepage not visible from side view ❌ Brake shoes at risk for contamination ❌ Missed in rushed inspections ✅ Found with hands-on inspection beneath the axle 💡 Wheel seals can fail from: Age and wear Overfilled or pressurized hubs Heat from braking Incorrect" [YouTube Link](https://youtube.com/watch?v=xHzRRPEtp7Q) 2025-04-21T17:00Z 327K followers, [----] engagements "⚙🚛 Volvo I-Shift TECU Replacement + Leak Check 🛠💨 This Volvo I-Shift came in with shifting issues and the TECU (Transmission Electronic Control Unit) needed replacement. After installing the new component our tech performed a leak test before final reassembly and discovered a leaking air supply fitting. ✅ Catching this issue during testing prevented the truck from going back on the road with a hidden air leak. ⚠ Always test for leaks before reinstall even new components can have issues. 👉 At TAT Express we follow strict procedures to make sure repairs are done right the first time and" [YouTube Link](https://youtube.com/watch?v=xKNQ6pwNGLI) 2025-08-27T14:43Z 329K followers, [----] engagements "✅⛽ Volvo D13 Clear Air-in-Fuel Test After Injector Cup Replacement 🚛🛠 After replacing the injector cups on this Volvo D13 our tech performed another air-in-fuel test to verify the repair. 🔎 This time the lines ran clear with no signs of air intrusion confirming the issue was resolved. ⚠ Failed injector cups are a common cause of hard starts rough idle and fuel/coolant cross-contamination. ✅ Post-repair testing ensures the job is done right and your truck is ready to run reliably. 👉 At TAT Express we dont just swap parts we verify repairs with proper testing so drivers can have confidence" [YouTube Link](https://youtube.com/watch?v=xV6n19pFqUs) 2025-08-29T20:27Z 329K followers, [----] engagements "❄⚡ A/C Compressor Test Clutch Not Engaging 🚛🔧" [YouTube Link](https://youtube.com/watch?v=xeEgCkQuTIg) 2025-09-12T13:02Z 329K followers, 15K engagements "⛽⚙ Fuel Injector Calibration in Progress Volvo D13 Engine Diagnostic ⚙⛽ ⛽⚙ Fuel Injector Calibration in Progress Volvo D13 Engine Diagnostic ⚙⛽ In this video our specialist tech is performing a pumping fuel injector calibration on a D13 engine after diagnosing a code for injection pump fuel metering circuit short to ground or open. To locate the root cause our team followed a complete diagnostic procedure based on the active code and tested the following components: Wiring harness checked for damaged connectors or broken wires 🔌 Injector #2 inspected for internal failure and connector" [YouTube Link](https://youtube.com/watch?v=xfxaFLyoimI) 2025-10-09T22:42Z 329K followers, [----] engagements "🚛 DD15 Gen [--] Fuel Rail Leaking Pressure Limiting Valve 🛠💨 In this clip were inspecting a fuel leak at the pressure limiting valve (PLV) on a Gen [--] DD15 fuel rail. A leaking PLV can cause low fuel pressure hard starts rough idling and even power loss under load. 🔧 Common causes of a leaking pressure limiting valve: ❌ Excessive fuel rail pressure over time ❌ Worn-out internal components or failed seal ❌ Contaminated fuel causing premature wear 🛠 How to fix it: ✔ Confirm fuel leak at the PLV ✔ Replace the faulty valve and torque to spec ✔ Reset fuel system adaptations and verify pressure 🚨" [YouTube Link](https://youtube.com/watch?v=xqcUQ5IJKzc) 2025-03-10T15:25Z 326K followers, [----] engagements "Combustion Gases Entering Cooling System Test. **Stay safe on the road with TAT Express Inc.** https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon to stay updated with our" [YouTube Link](https://youtube.com/watch?v=xvaj9o1DYzs) 2024-08-18T18:36Z 324K followers, [---] engagements "💨⛽ Volvo D13 Air-in-Fuel Test Bad Injector Cups 🚛🛠 Our tech performed an air-in-fuel test on this Volvo D13 after hard-start and drivability complaints. 🔎 The test showed excessive air in the fuel system and further inspection confirmed the issue: failed injector cups. ⚠ Bad injector cups allow fuel and air to cross-contaminate leading to: Hard starts or no starts ❌ Rough idle and poor performance Fuel in coolant contamination risks ✅ Replacing the injector cups resolves the leak path and restores proper system pressure. 👉 If your truck is showing hard starts bubbles in the fuel lines or" [YouTube Link](https://youtube.com/watch?v=xyMKcY_ptcA) 2025-08-29T18:44Z 329K followers, 10.1K engagements "Tech Tip Clutch Position Sensor DT12 Transmission #diesel #truck #repairs Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon" [YouTube Link](https://youtube.com/watch?v=yFRC3kC3GjU) 2024-11-25T20:05Z 325K followers, [----] engagements "🛠💨 Volvo D13 Low Power Fixed Cracked Injector Was the Hidden Cause 🔍🚛 This Volvo D13 came in with low power but it wasnt what it looked like We found minor boost leaks and a partially clogged EGR cooler during our first check but something still felt off. So we ran a cylinder balance testand sure enough one cylinder wasnt pulling its weight. A follow-up air-in-fuel test confirmed it: 🚨 Cracked injector on the sealing surface. This engine had nearly a million milesand those injectors were done. We installed a new set of injectors replaced the injector cups (a must on D13s) adjusted the" [YouTube Link](https://youtube.com/watch?v=yRY8myHZNBY) 2025-05-10T21:51Z 327K followers, [----] engagements "💨⚡ Air Switch Bench Test No Response = Bad Switch 🚛🛠" [YouTube Link](https://youtube.com/watch?v=yU9tVMpewJs) 2025-08-28T19:17Z 329K followers, 29.5K engagements "🚨 Loose Brake Hardware Found on Semi 🛑🔍 Safety First During a routine inspection our tech discovered loose brake hardware on this disc brake assembly a serious safety concern that couldve led to brake failure on the road. 🔧 The caliper mounting hardware was not torqued correctly and the movement was noticeable. This kind of oversight can lead to: ⚠ Uneven brake wear ⚠ Noise & vibration ⚠ Total loss of braking power under load At TAT Express we dont just change parts we inspect torque and verify every step. Our inspections catch problems before they become disasters. 📍 TAT Express 4140" [YouTube Link](https://youtube.com/watch?v=yUdeKAqpe2A) 2025-07-14T15:06Z 328K followers, [----] engagements "💨 BOOST LEAK This Common Issue Is Robbing Your Power ⚠🚛 Loss of power Poor fuel economy One of the most overlooked culprits is a leaking Charge Air Cooler (CAC) hose or clamp. In this clip we show visible boost leaks found during a pressure test and its a perfect example of why every boost system should be inspected under pressure. Even a small leak in the CAC tubing can: Reduce turbo efficiency Lower fuel mileage Increase exhaust temps Lead to engine derates ✅ If your truck isnt pulling like it used to dont assume its the turbo it could be your CAC tubing. Let us test it before you throw" [YouTube Link](https://youtube.com/watch?v=yaAH1lBg86c) 2025-06-20T15:18Z 327K followers, 32.8K engagements "🔧 Is Your Steering Wheel Crooked Heres How to Check It Straight 🛞 A crooked steering wheel isnt just annoyingits a red flag. It could mean: Misaligned front end Worn suspension components Steering gear or linkage issues Prior repairs done without alignment In this clip we show you how to visually confirm steering wheel straightness during inspection. This is a simple but critical check to catch early signs of alignment or suspension problems. ✅ Always confirm alignment after steering or suspension repairs ✅ Check steering wheel straightness during routine service ✅ Crooked wheel = potential" [YouTube Link](https://youtube.com/watch?v=yf_jzrzTrVs) 2025-06-12T18:43Z 327K followers, [----] engagements "🚛🔧 Customer Reported Popping Noise When Turning Heres What We Found 🔧🚛 🚛🔧 Customer Reported Popping Noise When Turning Heres What We Found 🔧🚛 A customer brought in this truck reporting a popping noise when turning the wheel halfway to each side. Our specialist tech performed a full inspection of the front end and pinpointed the issue: the driver-side leaf springs were squeaking on turns and showing signs of flattening. 💡 Possible causes of leaf spring wear or squeaking: Normal wear and tear over high mileage Corrosion or rust weakening the spring leaves 🌧 Overloading the truck" [YouTube Link](https://youtube.com/watch?v=z2KqoaEMKWc) 2025-10-03T21:25Z 329K followers, 10.1K engagements "🔋 Loose Battery Cables = BIG Electrical Problems ⚠ In this raw clip our tech finds loose negative battery connectionsa common cause of starting issues warning lights and electrical malfunctions. ✅ Always inspect battery terminals for tightness and corrosion ⚠ Loose connections can trigger fault codes and shifting problems 💡 Regular battery checks = fewer headaches on the road Dont wait for a no-start or a misdiagnosed issueelectrical problems often start right here. 📍 Stop by TAT Express [----] Langdon Rd Dallas TX 📞 Call: 972-225-3017 #BatteryCheck #DieselDiagnostics #ElectricalIssue" [YouTube Link](https://youtube.com/watch?v=zAliKjcOCEs) 2025-06-03T00:58Z 327K followers, [----] engagements "⚙👋 Sloppy Gear Shifts Check Your Shifter Tower Bushings 🛠🚛 In this clip our tech shows excessive play in the gear shifter on a high-mile semi-truck. The shifter tower bushings are worn out making gear changes loose and unpredictable. ❌ Sloppy gear engagement ❌ Extra movement before gears lock in ❌ Hand hitting the dash when shifting ❌ Increased driver fatigue and risk of mis-shifts 💡 Shifter towers wear out with age and use especially in trucks with over 500K miles. If your gear shifts feel off or sloppy your tower bushings may be the issue. 📍 TAT Express [----] Langdon Rd Dallas TX 📞" [YouTube Link](https://youtube.com/watch?v=zMv_DDV-orQ) 2025-04-19T16:05Z 326K followers, [----] engagements "💡⚠ Bad Headlight Connection Common Issue on Semi Trucks 🛠🚛 In this clip our tech is holding a semi-truck headlight that cuts off when its moved a clear sign of a bad internal connection. We see lighting issues like this all the time in the shop. Whether its a loose pin worn pigtail or vibration-damaged housing lighting problems can lead to: ❌ Failed DOT inspections ❌ Nighttime visibility issues ❌ Electrical shorts or system faults 🛠 Always check for movement-related cutoffs discoloration on pins or moisture inside the housing. If your lights flicker or fail dont wait its not just annoying" [YouTube Link](https://youtube.com/watch?v=zMxXu35GmMw) 2025-04-17T13:33Z 326K followers, [----] engagements "💧⚠👀 Pressurizing Coolant System on a D13 Volvo Tracking Down a Leak 🛠💧 In this clip were pressure testing the coolant system on a D13 Volvo to troubleshoot a suspected leak. With the system pressurized you can clearly see air bubbles forming at the top of the coolant reservoir a sign that air or combustion gases may be entering the cooling system. 🔍 What this could indicate: ❌ Internal coolant leak (head gasket EGR cooler or injector cups) ❌ Cracked cylinder head or block ❌ Air intrusion from a weak hose clamp or fitting 🛠 Pressure testing is a crucial step in pinpointing coolant system" [YouTube Link](https://youtube.com/watch?v=zT0jkHWSEA8) 2025-03-27T18:41Z 326K followers, [----] engagements "🔧 Boost Leak Hunt on X15 💨 Low Boost = High Soot 🔥" [YouTube Link](https://youtube.com/watch?v=zZaWA1d8Aps) 2025-07-15T14:59Z 328K followers, 15.5K engagements "🛠 Always Replace the Rear Main Seal During a Clutch Job Heres Why ⚠🧩 Doing a clutch job Dont skip the rear main seal. Even if its not leakingreplace it anyway. When you install a new clutch and flywheel the grip on the crankshaft increases significantly. That tighter engagement causes more flex at the rear of the crankand that flex is what leads to rear main seal failures after a clutch job. 💡 Why this matters: A new clutch grabs harder than a worn one Flexing increases at the rear of the crank That stress can cause the old seal to fail shortly after the job ✅ Always replace the rear main" [YouTube Link](https://youtube.com/watch?v=zhTNNZIsPlI) 2025-05-19T18:38Z 327K followers, [----] engagements "Buying a Used Semi-Truck Top Tips to Avoid Costly Mistakes Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon to stay updated" [YouTube Link](https://youtube.com/watch?v=zpf-An-kQ9Y) 2025-01-05T14:15Z 325K followers, [---] engagements "💧🔧 Water Pump Leak Found Cummins Engine Inspection 🔧💧 💧🔧 Water Pump Leak Found Cummins Engine Inspection 🔧💧 During inspection on this Cummins engine our specialist tech identified a coolant leak coming from the water pump. The water pump is a critical component of the cooling system responsible for circulating coolant throughout the engine to maintain proper operating temperature. 💡 Why water pump leaks happen: Normal wear of internal seals over time Coolant contamination or improper coolant mixture Corrosion buildup inside the cooling system High mileage and constant heat cycles 🌡" [YouTube Link](https://youtube.com/watch?v=1y_10HGQm1M) 2025-12-17T20:11Z 330K followers, [----] engagements "⚙🔧 Input Shaft Wear Causing Pilot Bearing Play Transmission Inspection 🔧⚙ ⚙🔧 Input Shaft Wear Causing Pilot Bearing Play Transmission Inspection 🔧⚙ During inspection our specialist tech found wear on the transmission input shaft which is causing excessive play at the pilot bearing. While the input shaft itself may still rotate this wear prevents the pilot bearing from supporting the shaft correctly leading to movement where there should be none. 💡 Why this is important: The pilot bearing is designed to keep the input shaft perfectly centered. When the shaft is worn the bearing cant do" [YouTube Link](https://youtube.com/watch?v=7OvTtN4fBKQ) 2025-12-26T18:25Z 330K followers, 20K engagements "🔧⛽ Fuel Pump Installed & Torqued to Specs DD15 Engine Repair Completed ⛽🔧 🔧⛽ Fuel Pump Installed & Torqued to Specs DD15 Engine Repair Completed ⛽🔧 In this video you can see the fuel pump fully installed and torqued to specification on this DD15 engine. After replacement the system was inspected and verified to be operating correctly with no leaks no abnormal readings and no issues present. 💡 Why proper fuel pump installation matters: The fuel pump is responsible for delivering the correct fuel pressure to the engine. If its worn failing or installed incorrectly it can lead to: Low or" [YouTube Link](https://youtube.com/watch?v=8R6q6F7FdSU) 2025-12-30T22:11Z 330K followers, 11.1K engagements "🛠🚛 Worn Cab Mounts Found Volvo Truck Ride & Stability Issue 🚛🛠 🛠🚛 Worn Cab Mounts Found Volvo Truck Ride & Stability Issue 🚛🛠 During inspection on this Volvo truck our specialist tech found the cab mounts worn out allowing excessive movement of the cab. Cab mounts are designed to support the cab absorb vibration and keep everything aligned between the cab and chassis. When they wear out that stability is lost. 💡 Why worn cab mounts are a problem: Cab mounts isolate road shock and engine vibration. Once they deteriorate the cab can shift creating discomfort for the driver and stress" [YouTube Link](https://youtube.com/watch?v=9XScee3_8JQ) 2025-12-23T15:57Z 330K followers, [----] engagements "Why Bad Coolant DESTROYS Modern Diesel Engines 💧🔥⚙ Under max load conditions EGR heat transfer can actually raise coolant temperature by [--] degrees. That extra heat puts serious strain on the cooling system and if coolant quality is poor things go downhill fast. When coolant turns rust-colored it means the protective inhibitors have been cooked out. At that point corrosion begins attacking internal cooling passages EGR coolers and cylinder head components. Combine that with already elevated temps from EGR flow and failure risk climbs quickly. Keeping clean properly mixed coolant isnt" [YouTube Link](https://youtube.com/watch?v=A9E7vmtLKIk) 2025-12-28T02:41Z 330K followers, [----] engagements "⚙🔍 End Yoke Found With Excessive Play Driveline Inspection 🔍⚙ ⚙🔍 End Yoke Found With Excessive Play Driveline Inspection 🔍⚙ During inspection on this truck our specialist tech identified excessive play at the end yoke. The end yoke connects the driveshaft to the differential or transmission and any looseness in this area is a serious driveline concern. 💡 What causes end yoke play: Worn splines from high mileage or lack of lubrication Loose or damaged retaining hardware Excessive driveline vibration over time Worn bearings or improper previous repairs Operating with a leaking seal that" [YouTube Link](https://youtube.com/watch?v=CMRuIFXaK88) 2025-12-17T20:06Z 330K followers, [----] engagements "🛢⚠ Milky Oil Found on Oil Cap Cummins X15 Engine Inspection ⚠🛢 🛢⚠ Milky Oil Found on Oil Cap Cummins X15 Engine Inspection ⚠🛢 During inspection on this Cummins X15 engine our specialist tech found milky oil mix residue on the oil cap. This condition is a sign that moisture is mixing with engine oil which should never be ignored. While the engine does have some blow-by it is still an important factor to consider when diagnosing oil contamination. 💡 Possible causes of milky oil on the oil cap: Moisture buildup from short trips or extended idle time Condensation inside the crankcase that" [YouTube Link](https://youtube.com/watch?v=DQw9bbg27XE) 2025-12-26T14:30Z 330K followers, [----] engagements "💨🔧 Air Leak Found on Air Lines Inspection Matters 🔧💨 💨🔧 Air Leak Found on Air Lines Inspection Matters 🔧💨 During inspection our specialist tech identified an air leak coming from the air lines a common issue that can quickly affect the entire air system if not corrected. Even a small leak can prevent the system from building and holding proper PSI leading to brake performance issues suspension problems and longer air-up times. 💡 Possible causes of air line leaks: Worn or cracked air lines due to age or heat Loose or damaged fittings Abrasion from rubbing against frame or components" [YouTube Link](https://youtube.com/watch?v=DVkEFBkCraI) 2025-12-11T23:01Z 330K followers, [----] engagements "🛑🔧 ABS Valve Fittings Leaking Air System Integrity at Risk 🔧🛑 🛑🔧 ABS Valve Fittings Leaking Air System Integrity at Risk 🔧🛑 During inspection our specialist tech identified air leaks coming from the ABS valve fittings. These fittings are critical for maintaining proper air pressure and ensuring the ABS system responds correctly during braking events. Even small leaks in this area can affect braking performance and overall vehicle safety. 💡 Why ABS valve fitting leaks matter: The ABS valve controls air pressure during braking to prevent wheel lockup. When fittings leak the system may" [YouTube Link](https://youtube.com/watch?v=EsdvfDTPmTA) 2025-12-29T21:51Z 330K followers, [----] engagements "🔧🚛 Fifth Wheel Rebuilt Safe & Secure Coupling Restored 🚛🔧 🔧🚛 Fifth Wheel Rebuilt Safe & Secure Coupling Restored 🚛🔧 During inspection our specialist tech identified excessive wear and play on this fifth wheel assembly which can compromise trailer coupling and overall driving safety. To restore proper operation a full fifth wheel rebuild was performed ensuring all internal components are functioning correctly and locking as designed. 💡 Why a fifth wheel rebuild is important: The fifth wheel is responsible for securely connecting the tractor to the trailer. Over time constant load" [YouTube Link](https://youtube.com/watch?v=I16soX0VgZg) 2026-01-02T14:06Z 330K followers, 12.4K engagements "🛢🔧 Rocker Box Oil Leak Found DD15 Engine Inspection 🔧🛢 🛢🔧 Rocker Box Oil Leak Found DD15 Engine Inspection 🔧🛢 During inspection on this DD15 engine our specialist tech identified oil leaks coming from the rocker box. The rocker box seals the top of the cylinder head and keeps engine oil contained while lubricating critical valve train components. When this seal fails oil can travel down the engine creating larger messes and masking other potential leaks. 💡 Why rocker box leaks are a concern: Oil leaks can spread down the engine block making diagnosis harder Oil contamination can" [YouTube Link](https://youtube.com/watch?v=I7CwTsM4dEE) 2025-12-22T17:56Z 330K followers, [----] engagements "🛠🚛 Worn Cab Mounts Found Freightliner Truck Inspection 🚛🛠 🛠🚛 Worn Cab Mounts Found Freightliner Truck Inspection 🚛🛠 During inspection on this Freightliner truck our specialist tech found the cab mounts worn out allowing excessive movement of the cab. Cab mounts are designed to isolate vibration support the cabs weight and keep it securely positioned on the frame when they fail that movement becomes noticeable and problematic. 💡 What causes cab mounts to wear out: Normal wear and tear from high mileage Constant vibration and road shock Rubber deterioration due to heat oil or age" [YouTube Link](https://youtube.com/watch?v=JA70Wm8bzDc) 2025-12-19T22:52Z 330K followers, [----] engagements "Why EGR Systems Matter on Modern Semi Trucks 🚛🔥 How They Work Fail & How to Maintain Them Modern EGR systems are one of the most misunderstood parts of todays diesel engines and one of the most critical. In this video I break down exactly how EGR systems work on modern semi trucks why they exist the risks of deleting them the most common failure points and maintenance tips to keep your engine running longer and cleaner. Whether you run Detroit DD15 Cummins ISX PACCAR MX13 or Volvo D13 understanding how hot exhaust gases move through the EGR cooler valve throttle and intake can save you" [YouTube Link](https://youtube.com/watch?v=L1NkRqfoGq0) 2025-12-12T01:00Z 330K followers, [---] engagements "Why EGR Coolers Take a Beating on Modern Engines 🔥💨💧 Modern EGR systems are under extreme stress especially on engines like the DD15. When the EGR valve opens exhaust gases are routed through the EGR cooler directly from the exhaust manifolds center section. That cooler is taking exhaust temperatures as high as 1200F and dropping them down to roughly 350F before the gases re-enter the intake. That massive temperature drop puts a heavy load on the cooling system. Over time this heat transfer combined with soot buildup and coolant flow issues can strain components and contribute to failures" [YouTube Link](https://youtube.com/watch?v=LWK2fFItiwU) 2025-12-24T01:00Z 330K followers, [----] engagements "⚡🚛 VGT Actuator Codes Heres What You Need to Know ⚡🚛 VGT Actuator Codes Heres What You Need to Know This truck came in with VGT actuator codes and our specialist tech performed all necessary tests. The resistance values were out of range confirming a bad turbo actuator. Replacement was recommended to restore proper turbo function and engine performance. 🔧 ⚠ Drivers should be aware: Loss of engine power & sluggish acceleration Engine may go into limp mode Increased exhaust temperatures & fuel consumption Risk of severe turbocharger damage if ignored Early detection and repair keep your" [YouTube Link](https://youtube.com/watch?v=LX08K7c2T-k) 2025-09-24T21:07Z 330K followers, [----] engagements "How to Prevent DD15 Cylinder Head Failures 🔧🔥💧 To route coolant through a modern DD15 cylinder head manufacturers had to remove a significant amount of metal. Thats why CGI (Compact Graphite Iron) is used its stronger but also more susceptible to micro-fractures especially in cylinders [--] and [--] which are the last to receive coolant. Prevention comes down to maintenance and temperature control. Cooling system issues like fans not engaging worn belts or tensioners poor coolant flow or ignored EGR faults can all drive temperatures higher inside the cylinder and intake. A sticking EGR valve or" [YouTube Link](https://youtube.com/watch?v=LzQOVegSMVs) 2025-12-16T15:53Z 330K followers, [----] engagements "Why CGI Cylinder Heads Are So Hard to Diagnose 🧠🔧🔥 CGI (Compact Graphite Iron) behaves completely different than traditional gray iron and thats why modern cylinder head failures are so difficult to trace. Many machine shops struggle to identify the root cause or wont even accept these heads because they dont have the equipment needed to detect micro-cracks buried deep inside the casting. These cracks form in extremely narrow areas like between valve bridges and often dont show up during pressure or combustion gas testing. The engine passes tests then fails once it reaches operating" [YouTube Link](https://youtube.com/watch?v=MtqrMXHFfsU) 2025-12-15T23:38Z 330K followers, [----] engagements "This Is Why Bad Fuel Destroys Modern Diesels ⛽💥 Modern diesel engines use extremely high-pressure fuel pumps and the fuel itself is now part of the lubrication system. When lubricity drops or contamination gets in failure happens fast pumps rails injectors everything. In this video I break down why newer engines (Detroit Cummins PACCAR Volvo and more) are so sensitive to fuel quality how these pumps actually fail and what drivers and techs can do to prevent expensive damage. What we cover: Why fuel acts as lubrication in high-pressure pumps What happens when lubricity is too low Real-world" [YouTube Link](https://youtube.com/watch?v=PwKFbPU_tUw) 2025-12-29T01:42Z 330K followers, [---] engagements "⚙🔍 Excessive Play & Broken Clutch Springs Found I-Shift Transmission Inspection 🔍⚙ ⚙🔍 Excessive Play & Broken Clutch Springs Found I-Shift Transmission Inspection 🔍⚙ During inspection of this I-Shift transmission our specialist tech identified excessive play in the clutch springs along with broken springs and visible scratches on the clutch components. These findings clearly indicate internal wear that can seriously affect shifting performance and drivetrain reliability. 💡 Why clutch springs matter in an I-Shift transmission: Clutch springs are designed to absorb shock maintain proper" [YouTube Link](https://youtube.com/watch?v=Q-RWucRuIHo) 2025-12-24T17:08Z 330K followers, [----] engagements "🧐🔧⚠ Paccar MX-13 Head Gasket Replacement Checking Liner Protrusion 🛠🔍 📍 Location: https://maps.app.goo.gl/T3cTb5g6Qd98hTTP9 TAT Express Inc [----] Langdon Rd Dallas TX [-----] 📞 Call Now: 972-225-3017 When replacing a head gasket on a Paccar MX-13 checking liner protrusion is a critical step to ensure a proper seal and prevent future failures. 🔧 Why measure liner protrusion ✅ Ensures proper sealing of the new head gasket ✅ Prevents compression leaks and coolant intrusion ✅ Confirms the liners havent dropped which could lead to a repeat failure 🛠 What we found: ✔ Used a dial indicator to" [YouTube Link](https://youtube.com/watch?v=QYsv0jrqeyc) 2025-03-05T19:57Z 330K followers, 14.7K engagements "⛽🔧 Fuel Leaks Found at High-Pressure Pump Fittings Diesel Engine Inspection 🔧⛽ ⛽🔧 Fuel Leaks Found at High-Pressure Pump Fittings Diesel Engine Inspection 🔧⛽ During inspection our specialist tech identified fuel leaks coming from the high-pressure fuel pump fittings. These fittings operate under extreme pressure and even a small leak in this area can quickly turn into a major performance and safety concern. 💡 Possible causes of high-pressure fuel pump fitting leaks: Worn or damaged sealing surfaces Loose or improperly torqued fittings O-rings or seals deteriorated from heat and pressure" [YouTube Link](https://youtube.com/watch?v=Ql7Dbbh96_o) 2025-12-18T18:19Z 330K followers, [----] engagements "💨🔧 Charge Air Cooler (CAC) Leak Found D13 Engine Inspection 🔧💨 💨🔧 Charge Air Cooler (CAC) Leak Found D13 Engine Inspection 🔧💨 During inspection on this Volvo D13 engine our specialist tech identified a leak in the Charge Air Cooler (CAC) system. The CAC is responsible for cooling the compressed air from the turbo before it enters the engine and when it leaks engine performance is immediately affected. 💡 Why a CAC leak matters: A leaking CAC allows pressurized air to escape meaning the engine is not receiving the correct amount of clean cooled air. This leads to poor combustion and" [YouTube Link](https://youtube.com/watch?v=QrWCBjKc8Sk) 2025-12-18T17:25Z 330K followers, [----] engagements "💨🔧 Air Hose Leak Found Compressor to Air Dryer Line 🔧💨" [YouTube Link](https://youtube.com/watch?v=RyBW79LbR7g) 2025-12-11T21:09Z 330K followers, [----] engagements "💨🛠⚠ EGR & DPF Faults on MX13 Clogged Sensor Ports = Major Soot Buildup 💨🛠⚠ This Paccar MX13 came in with EGR and DPF faults. During diagnostics we found the EGR delta pressure sensor ports completely clogged with soot a clear sign of heavy buildup in the emissions system. 🔧 What we found & recommend: ❌ Clogged delta-p sensor ports ❌ Signs of heavy soot throughout the EGR system ✔ Clean ports and sensors ✔ Inspect the EGR cooler and intake ✔ Check DPF system condition 🛠 Excessive soot buildup is preventable with proper maintenance and correct engine operation dont wait until youre" [YouTube Link](https://youtube.com/watch?v=S1mNkKGcgu8) 2025-04-10T17:58Z 330K followers, [----] engagements "What the EGR System REALLY Does on a Diesel Engine 🔥💨⚙ What does the EGR system actually do on a diesel engine In modern inline-six engines used in semi trucks exhaust gases dont just leave the engine a portion is routed back into the intake through the EGR system. As exhaust gases drive the turbo and fresh air is cooled and fed into the intake the EGR valve diverts a controlled amount of exhaust through a cooler and reintroduces it into the intake stream. This process is called Exhaust Gas Recirculation (EGR). EGR isnt designed for performance its for emissions compliance and temperature" [YouTube Link](https://youtube.com/watch?v=SNguoI-xZI0) 2025-12-19T22:25Z 330K followers, [----] engagements "🔧⛽ Fuel Pump Replacement In Progress DD15 Engine ⛽🔧 🔧⛽ Fuel Pump Replacement In Progress DD15 Engine ⛽🔧 In this video our specialist tech is in the process of replacing the fuel pump on a DD15 engine. The fuel pump plays a critical role in supplying consistent fuel pressure to the injectors ensuring proper combustion and smooth engine operation. 💡 Why fuel pump condition is so important: A failing fuel pump can cause: Hard starts or no-start conditions Loss of power under load Rough idle or hesitation Inconsistent fuel pressure readings Check engine lights or derate conditions ⚙ Common" [YouTube Link](https://youtube.com/watch?v=V1-nZEtNZCc) 2025-12-30T20:57Z 330K followers, [----] engagements "🔩🛢 Metal Found on Differential Magnets Front Differential Inspection 🛢🔩l 🔩🛢 Metal Found on Differential Magnets Front Differential Inspection 🛢🔩 While draining the front differential fluid on this Freightliner truck our specialist tech discovered large metal shavings attached to the magnetic drain plug an immediate red flag that internal wear was occurring. To go a step further the proper inspection tool was used to verify whether metal debris was present inside the differential which was confirmed as shown in the video. 💡 Why checking the magnets matters: The magnets inside the" [YouTube Link](https://youtube.com/watch?v=VmqQKqriU3c) 2025-12-15T22:24Z 330K followers, [----] engagements "Detroit DDEC Report fuel economy activity report diagnostic records idle time New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] In this video I go over the Detroit DDEC Report. DDEC Reports provide useful data reports including trip data fuel economy activity reports/monthly reports accumulation of idle time truck speed/RPM report diagnostic records and daily engine usage. Check out my other videos Most common issues on ISX15 https://youtu.be/Mx3zzLmAAzA [--] Wheeler DOT Inspection https://youtu.be/P-FKCHAncQU Most Common Issues" [YouTube Link](https://youtube.com/watch?v=VnFhvrxuIKU) 2020-09-13T15:00Z 330K followers, [----] engagements "Why Idling & EGR Deletes Wreck DD15 Engines 😬🔥💨 Low duty-cycle driving and extended idling push unburned fuel and soot into the EGR cooler loading it up faster than normal. Thats why DD15 engines have strict idle limits. Modern DD15 turbos also no longer use actuators or wastegates. Instead the EGR valve now controls boost acting like a built-in wastegate. When people delete EGR systems the engine loses that boost control and over-boost becomes a real threat leading to major engine damage. Combine that with excessive soot from poor driving habits and failures start to compound fast." [YouTube Link](https://youtube.com/watch?v=VpKGRNyo6ZM) 2025-12-28T16:35Z 330K followers, [----] engagements "⚠Both Intake & Exhaust Valves TOO TIGHT on Cummins X15 🔧🔥Zero Lash = Major Risk 🚛💥 During an overhead adjustment on this Cummins X15 our techs found both intake and exhaust valves with zero lash meaning they were set too tight and not fully closing. This condition causes loss of compression poor fuel economy rough idle hard starts and eventually valve and seat damage. If left unchecked it can lead to expensive repairs or full engine failure. This is why routine overheads matter theyre not optional theyre essential. 📍 TAT Express [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 🌐 Find us" [YouTube Link](https://youtube.com/watch?v=WHklO_3MFq0) 2025-07-18T13:54Z 330K followers, 41.1K engagements "Why DD15 Cylinder Failures Hit #5 & #6 First 🔥💧⚙ How do you prevent cylinder failures on a modern engine like a DD15 You start by understanding where and why they fail. Detroit designed a coolant manifold to cool the exhaust side of the cylinder head but coolant flow and temperature monitoring arent equal across the head. Cylinders [--] and [--] are the last to receive coolant and temperature is only monitored at the outlet side not at the rear of the head where temps can be significantly higher. That imbalance creates hot spots which is why failures often show up in the rear cylinders first. The" [YouTube Link](https://youtube.com/watch?v=WTONTLTOQZo) 2025-12-16T15:34Z 330K followers, [----] engagements "🔍🌫EGR Ports Inspection No Soot Buildup Found 🌫🔍 🔍🌫EGR Ports Inspection No Soot Buildup Found 🌫🔍 During inspection on this truck our specialist tech checked the EGR ports to verify if there was any soot buildup or restriction inside the system. As shown in the video the EGR ports are clean and free of soot confirming proper exhaust gas flow at this stage of the inspection. 💡 Why inspecting EGR ports matters: The EGR ports allow exhaust gases to flow back into the engine to control emissions and combustion temperatures. When soot builds up in these ports it can restrict flow and lead" [YouTube Link](https://youtube.com/watch?v=Wj1Jlx3YP6g) 2025-12-29T20:16Z 330K followers, [----] engagements "🔧🛢 High-Pressure Pump Reseal Reassembly in Progress (Power Stroke Engine) 🛢🔧 🔧🛢 High-Pressure Pump Reseal Reassembly in Progress (Power Stroke Engine) 🛢🔧 In this video our specialist tech is putting everything back together after successfully resealing the high-pressure fuel pump on this Power Stroke engine. The critical sealing work has already been completed and this final stage ensures all components are installed correctly torqued to spec and ready for operation. 💡 Why resealing the high-pressure pump matters: The high-pressure pump is responsible for delivering fuel at precise" [YouTube Link](https://youtube.com/watch?v=WlXNIANijt0) 2025-12-12T20:17Z 330K followers, [----] engagements "Localized Heating: The Hidden Cause of DD15 Head Failures 🔥💧⚙ On modern engines like the DD15 the rear cylinders are the last to receive coolant. That creates localized heating especially in cylinders [--] and [--]. While Detroit monitors coolant temperature at the outlet of the head it doesnt capture the true temperatures at the rear where heat builds inside the cylinder head. If coolant flow drops even slightlydue to low coolant thermostat issues leaks poor fan operation or restricted flowthe rear cylinders get hotter first. That localized heat leads to micro-fractures inside the CGI casting" [YouTube Link](https://youtube.com/watch?v=XaISOdLli3Q) 2025-12-17T16:31Z 330K followers, [---] engagements "🔧🛢 Pinion Seal Replacement Hino [---] Truck 🛢🔧 🔧🛢 Pinion Seal Replacement Hino [---] Truck 🛢🔧 During inspection on this Hino [---] our specialist tech found the pinion seal leaking at the differential. The pinion seal is responsible for keeping gear oil sealed inside the differential while allowing the driveshaft to rotate smoothly. When this seal fails gear oil begins to leak putting critical drivetrain components at risk. 💡 Common causes of pinion seal leaks: Normal wear and hardening of the seal over time Heat and vibration from daily operation 🌡 Excessive driveline movement or" [YouTube Link](https://youtube.com/watch?v=YFyNpv0fXAE) 2025-12-23T18:03Z 330K followers, [----] engagements "💨🔧 Air Leaks Found on Firewall Air Lines Freightliner Truck Inspection 🔧💨 💨🔧 Air Leaks Found on Firewall Air Lines Freightliner Truck Inspection 🔧💨 During inspection on this Freightliner truck our specialist tech identified air leaks coming from multiple air line fittings located at the firewall. These air lines are critical for supplying and distributing air to key systems and even small leaks in this area can affect overall air system performance. 💡 Why air leaks at the firewall matter: Air lines at the firewall feed essential components such as brake controls and air accessories." [YouTube Link](https://youtube.com/watch?v=Yb_4JwDFtF0) 2025-12-24T18:21Z 330K followers, 43.8K engagements "❄🔧 A/C Compressor Inspection Operating Properly 🔧❄ ❄🔧 A/C Compressor Inspection Operating Properly 🔧❄ In this video our specialist tech performs an A/C compressor inspection verifying proper operation of the system. As shown the compressor is engaging and functioning correctly indicating that this component is not the source of any A/C performance concerns at this time. 💡 Why inspecting the A/C compressor matters: The A/C compressor is the heart of the air conditioning system. It pressurizes and circulates refrigerant throughout the system allowing your cab to cool properlyespecially" [YouTube Link](https://youtube.com/watch?v=_xyhHaEh9fE) 2025-12-30T19:17Z 330K followers, [----] engagements "⚠🔎 Kingpin Play Over .010 Out of Spec 🚛🛠 Our tech measured the kingpin play using a dial indicator and the reading came back just over .010. Thats beyond spec for most kingpins and a clear sign the front end needs attention. 🔎 Why this matters: Excessive play = unsafe steering & poor handling ❌ Causes uneven tire wear and alignment issues ⚠ Can lead to DOT violations and costly roadside downtime 💸 ✅ Catching this early allows repairs before a complete kingpin failure. 👉 Dont wait until your steering feels sloppy or your truck is pulled out of service schedule a front end inspection" [YouTube Link](https://youtube.com/watch?v=c6XGxOXrzps) 2025-09-10T13:01Z 330K followers, [----] engagements "💨🔧 Air Leaks Found at Fifth Wheel Valve Fittings Freightliner Inspection 🔧💨 💨🔧 Air Leaks Found at Fifth Wheel Valve Fittings Freightliner Inspection 🔧💨 During inspection on this truck our specialist tech identified air leaks coming from fittings around the fifth wheel valve. The fifth wheel valve controls the air supply to the trailers locking mechanism making it a critical safety component for coupling and uncoupling operations. 💡 Why fifth wheel valve air leaks matter: The fifth wheel valve must maintain consistent air pressure to properly lock and release the trailer. Even small" [YouTube Link](https://youtube.com/watch?v=dXkQAWPgX7s) 2025-12-29T18:35Z 330K followers, [----] engagements "🔧⚠ Broken Clutch Springs Found Internal Damage Identified ⚠🔧 🔧⚠ Broken Clutch Springs Found Internal Damage Identified ⚠🔧 During inspection of this automatic transmission our specialist tech discovered metal pieces inside the flywheel housing. After further evaluation it was confirmed that the clutch springs were broken allowing metal fragments to circulate inside the bell housing area. 💡 Why this is a serious finding: Clutch springs play a critical role in absorbing shock and maintaining smooth engagement between the engine and transmission. When they break the transmission can no" [YouTube Link](https://youtube.com/watch?v=db8Che55Lqg) 2025-12-23T17:17Z 330K followers, [----] engagements "🛠 Cummins X15 EGR Cooler Inspection 🔎💨 Excessive Soot = Future Problems 🚨 Our technician is inspecting the EGR cooler on a Cummins X15 for excessive soot buildup a common issue that leads to: ❌ Reduced fuel economy ❌ Loss of power ❌ Aftertreatment system failures ❌ Premature engine wear Heavy soot in the EGR cooler can choke your system and cause recurring fault codes regen problems and even DPF damage. Catching this early can save thousands in future repairs. At TAT Express we go beyond the basics to diagnose what others miss. If your truck is down on power smoking or throwing EGR/DPF" [YouTube Link](https://youtube.com/watch?v=eAhWqZO80RY) 2025-07-15T14:53Z 330K followers, [----] engagements "💨🔍 Intake Leak Found Cummins X15 Engine Inspection 🔍💨 💨🔍 Intake Leak Found Cummins X15 Engine Inspection 🔍💨 During inspection on this X15 engine our specialist tech located an intake leak affecting the engines air delivery and overall performance. Even a single leak in the intake system can cause major drivability issues especially under load. 💡 Why intake leaks matter: The intake system must stay completely sealed to ensure the turbocharger delivers the correct amount of boost to the engine. When theres a leak: Boost pressure drops Fuel-to-air ratio becomes unbalanced Power and" [YouTube Link](https://youtube.com/watch?v=hRYUy5A3kiw) 2025-12-11T23:07Z 330K followers, [----] engagements "Paccar MX13 excessive pressure in coolant system. Full video https://youtu.be/8nk7FIGhs7g New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] What causes pressure build up in cooling systemCompression in coolant systemEngine coolant tankdd15mx13paccar mx13common problems on paccar mx13coolant pressure in coolant tankcheck engine lights on paccar mx13paccar mx13 common problemspaccar mx13 engine fan failedpaccar mx13 milmil paccar mx13paccar mx13 stop lightpaccar mx13 check engine lightpaccar air compressor failurepaccar mx13" [YouTube Link](https://youtube.com/watch?v=hahYDhuqvAU) 2023-12-09T16:00Z 330K followers, 12K engagements "🔌⚠ ECM Harness Pigtail Found Corroded & Worn Electrical Issue Identified ⚠🔌 🔌⚠ ECM Harness Pigtail Found Corroded & Worn Electrical Issue Identified ⚠🔌 During inspection on this truck our specialist tech found the ECM harness pigtail severely corroded and worn out. This connector is critical for proper communication between the engine control module (ECM) and multiple engine systems. When corrosion or damage is present electrical signals can become unstable or interrupted. 💡 Why a damaged ECM pigtail is a serious concern: The ECM relies on clean consistent electrical connections to" [YouTube Link](https://youtube.com/watch?v=ibSTwdN3NFY) 2025-12-19T17:01Z 330K followers, [----] engagements "The importance of inspecting a truck before purchasing. Use DDEC reports to view the history of unit Full Live https://youtube.com/live/Jk-IbaxL1oA Maximize your trucking potential Our tailored preventive maintenance program is your key to unmatched reliability and efficiency for your semi-trucks. Don't let breakdowns slow you downpartner with us and experience worry-free journeys on the road to success. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Recommend following a server" [YouTube Link](https://youtube.com/watch?v=jAEtuhgEOGY) 2024-02-27T23:00Z 330K followers, [---] engagements "How to repair coolant in fuel cross-contamination on X15 Cummins. Fuel in coolant Cummins X15 #x15 Full Video https://youtu.be/XLv8YGQN_kY New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Coolant in fuelcoolant in fuel water separatorcoolant in fuel Cummins ISXcoolant in fuel systemcoolant in fuelcoolant in fuel tankcoolant in fuel filterfreightliner cascadiacoolant in diesel fuelcummins isx15cummins fuel pump problemsLow power CumminsCummins engine low powerCummins power lossCummins ISX loss of powerISX15cummins isx15" [YouTube Link](https://youtube.com/watch?v=jcaLOWjV-XU) 2023-11-04T19:00Z 330K followers, [----] engagements "😼🚛 C15 CAT Turbo Replacement & Boost Leak Test 🔩🔥 🚛 C15 CAT Turbo Replacement & Boost Leak Test 🛠🔥 Just swapped out a failed turbo on this Caterpillar C15 and made sure to follow up with a boost leak test to ensure peak performance. 🔧 Why the turbo failed: Excessive shaft play and oil leaks were causing low boost pressure and power loss. ✅ Steps we took: [--] Removed the old turbo and inspected for damage. [--] Installed a new turbo and checked all connections. [--] Conducted a boost leak test to confirm no air loss. 💨 Boost leaks = lost power & efficiency A small leak can make a big" [YouTube Link](https://youtube.com/watch?v=kU5X39g3dms) 2025-02-26T22:29Z 330K followers, [----] engagements "Why Cylinder Heads FAIL Even When Tests PASS 🤯🔥 Why are we still seeing cylinder head failures when combustion gas and coolant pressure tests pass The answer is in the material. Modern engines use CGI (Compact Graphite Iron) stronger than gray iron but not without tradeoffs. These heads can develop micro-cracks inside the casting that dont show up during pressure testing. They only leak once the engine reaches operating temperature especially in tight areas like valve bridges and cooling ports. Thats why some failures are so hard to diagnose until its too late. Understanding this helps" [YouTube Link](https://youtube.com/watch?v=kkqsqFPa--U) 2025-12-13T16:16Z 330K followers, [----] engagements "🔧⚙ Transmission Input Shaft & Countershaft Brake Reseal Repair In Progress ⚙🔧 🔧⚙ Transmission Input Shaft & Countershaft Brake Reseal Repair In Progress ⚙🔧 These seals play a critical role in keeping transmission oil contained and ensuring proper clutch engagement and shifting performance. 💡 Why resealing these components is important: The input shaft seal prevents oil from leaking into the clutch housing while the countershaft brake seal ensures clean and consistent shiftingespecially on automated and manual transmissions. When these seals fail oil leaks can contaminate the clutch cause" [YouTube Link](https://youtube.com/watch?v=mTt9JoFJ08g) 2025-12-31T22:31Z 330K followers, [----] engagements "🛑💨 Steer Axle Brake Chamber Leak Found Freightliner Truck 💨🛑 🛑💨 Steer Axle Brake Chamber Leak Found Freightliner Truck 💨🛑 During inspection on this Freightliner truck our specialist tech found a brake chamber leaking on the steer axle. The steer axle is critical for both stopping power and directional control so any air loss in this area is a serious safety concern that must be addressed immediately. 💡 Why a leaking brake chamber is a big deal: Brake chambers convert air pressure into mechanical force to apply the brakes. When a chamber leaks it cannot maintain proper pressure" [YouTube Link](https://youtube.com/watch?v=mWAqFuOVebI) 2025-12-26T18:55Z 330K followers, [----] engagements "🔥🛢 Transmission Oil Cooler (Heater Exchanger) Leak Found Columbia Truck 🛢🔥 🔥🛢 Transmission Oil Cooler (Heater Exchanger) Leak Found Columbia Truck 🛢🔥 During inspection on this Columbia truck our specialist tech found the heater exchanger used for the transmission oil cooler leaking. This component helps regulate transmission temperature by transferring heat between fluids and when it leaks it can quickly turn into a major reliability issue. 💡 Why this matters: The transmission oil cooler keeps fluid at the correct operating temperature. A leak can cause fluid loss overheating and" [YouTube Link](https://youtube.com/watch?v=nKtRSrTY2jk) 2025-12-12T19:16Z 330K followers, [----] engagements "How EGR Works on a DD15 🔥💨⚙ So how does the EGR system actually work on a DD15 The DD15 uses a three-piece exhaust manifold and the EGR passage is built directly into the center section of that manifold. When the EGR valve opens a portion of exhaust gas is diverted through a hot pipe and into the EGR cooler. Inside the cooler exhaust gas flows through internal tubes surrounded by engine coolant. The gas enters extremely hot and exits at a lower temperature before being routed back into the intake. Its still hot just controlled. This cooling process is critical for managing combustion" [YouTube Link](https://youtube.com/watch?v=nXy5xGz1BSM) 2025-12-22T00:43Z 330K followers, [----] engagements "Why Removing EGR Hurts Modern Engines 😬💨🔥 A lot of people hate EGR because exhaust is being recirculated but modern engines are designed to run with it. When EGR systems are deleted or tampered with the engine no longer operates the way it was engineered. It may run for a while but efficiency fuel mileage and reliability all suffer. Modern engines are actually more efficient and get better fuel economy than older models they just require different maintenance. Once you understand how these systems work maintaining them becomes easier and far less expensive than repeated breakdowns caused" [YouTube Link](https://youtube.com/watch?v=nwGQl79-yXU) 2026-01-05T18:40Z 330K followers, [----] engagements "🛢🔧 Flywheel Housing Leak Found DD15 Engine Inspection 🔧🛢 🛢🔧 Flywheel Housing Leak Found DD15 Engine Inspection 🔧🛢 During inspection on this DD15 engine our specialist tech identified oil leaks coming from the flywheel housing area. Leaks in this location are critical because they often indicate a sealing issue between major engine components and can allow oil to spread throughout the lower engine and drivetrain area. 💡 Why flywheel housing leaks matter: The flywheel housing seals the rear of the engine keeping oil contained while protecting the clutch and transmission components." [YouTube Link](https://youtube.com/watch?v=p587KLPfrII) 2025-12-22T17:26Z 330K followers, 15.6K engagements "🌬🚛 Cabin Recirculating Filter Replaced Peterbilt Truck Service 🚛🌬" [YouTube Link](https://youtube.com/watch?v=qQtVAA89nUM) 2025-12-19T17:13Z 330K followers, [----] engagements "Why Dirty Sensors Kill EGR Systems 😬💨🔧 All the data that controls EGR flow is read through multiple sensors intake sensors delta-P sensors and others throughout the system. Over time those sensors get clogged with soot and when the readings go bad the ECM starts making the wrong adjustments. Bad data = wrong EGR operation. Wrong EGR operation = higher heat poor performance and premature failures. Ignoring dirty or failing sensors doesnt just cause drivability issues it can shorten the life of the entire EGR system. Regular inspection and cleaning should be part of every modern diesel" [YouTube Link](https://youtube.com/watch?v=r7u1BK1c25c) 2026-01-04T21:25Z 330K followers, [---] engagements "⚙🚨 Excessive Turbocharger Turbine Play Found Early Failure Warning 🚨⚙Dallas ⚙🚨 Excessive Turbocharger Turbine Play Found Early Failure Warning 🚨⚙ During inspection our specialist tech identified excessive play in the turbocharger turbine. This condition is a strong indicator that the turbocharger is wearing internally and no longer operating within proper tolerances. 💡 What causes excessive turbine play: Normal wear over time and high mileage Insufficient lubrication due to oil supply issues 🛢 Contaminated oil accelerating bearing wear Overheating from exhaust restrictions or failed" [YouTube Link](https://youtube.com/watch?v=sARhYF5ogWM) 2025-12-17T19:55Z 330K followers, [----] engagements "🛢🔍 Oil Residue Found on Bell Housing Early Warning Sign 🔍🛢 🛢🔍 Oil Residue Found on Bell Housing Early Warning Sign 🔍🛢 During inspection our specialist tech identified oil residue present on the bell housing. While this may look minor at first glance oil in this area is often a sign of an active or developing internal engine or transmission leak that should never be ignored. 💡 What oil residue on the bell housing can indicate: Rear main seal starting to leak Flywheel housing gasket seepage Transmission input shaft seal leak Excessive crankcase pressure pushing oil past seals Previous" [YouTube Link](https://youtube.com/watch?v=sffXoGFGEmw) 2025-12-24T17:47Z 330K followers, [----] engagements "How EGR Controls Turbo Boost on a DD15 🔥💨⚙ When inspecting EGR coolers the inlet side matters most it sees the hottest exhaust gases and the most abuse. On modern DD15 engines Detroit eliminated traditional wastegates and turbo actuators. Instead the EGR valve is used to control boost pressure. Thats critical to understand because when the EGR system is removed or disabled boost can spike uncontrollably leading to serious engine damage. Add poor maintenance skipped valve adjustments overdue fuel filters neglected oil changes and soot production increases. That soot builds up inside the EGR" [YouTube Link](https://youtube.com/watch?v=u-iTOEeXpJA) 2025-12-22T17:33Z 330K followers, [----] engagements "⛽📉 Fuel Pressure Fluctuating at Idle DD15 Engine Diagnostic 📉⛽ ⛽📉 Fuel Pressure Fluctuating at Idle DD15 Engine Diagnostic 📉⛽ During inspection and live data monitoring on this DD15 engine our specialist tech noticed that actual fuel pressure was fluctuating at idle instead of matching the desired fuel pressure. At idle fuel pressure should remain steady fluctuations indicate the fuel system is struggling to regulate pressure correctly. 💡 What can cause fuel pressure fluctuations at idle: Failing fuel pressure regulator or control valve Air entering the fuel system (loose fittings worn" [YouTube Link](https://youtube.com/watch?v=u3pkTVwBduY) 2025-12-16T21:45Z 330K followers, [---] engagements "🚨🛑 Brake Chamber Leak Found Steer Axle Freightliner Truck 🛑🚨 🚨🛑 Brake Chamber Leak Found Steer Axle Freightliner Truck 🛑🚨 During inspection on this Freightliner truck our specialist tech identified a leaking brake chamber on the steer axle. The steer axle is critical for both stopping power and directional control so any air leak in this area is a serious safety concern that should never be ignored. 💡 Why a leaking brake chamber matters: Brake chambers convert air pressure into mechanical force to apply the brakes. When a chamber leaks it cannot maintain proper air pressure reducing" [YouTube Link](https://youtube.com/watch?v=uPZEj9lVeoQ) 2025-12-15T17:20Z 330K followers, 12.2K engagements "🔩🚛 Loose Rear Suspension Hardware Found Safety Inspection 🚛🔩 🔩🚛 Loose Rear Suspension Hardware Found Safety Inspection 🚛🔩 During inspection our specialist tech identified loose hardware on the rear suspension. Suspension hardware plays a critical role in keeping the axle properly aligned and securely mounted to the frame. When bolts or fasteners loosen it can affect handling stability and overall safety. 💡 Why loose suspension hardware is a serious concern: The rear suspension supports vehicle load and controls axle movement. Loose hardware allows unwanted movement that can cause" [YouTube Link](https://youtube.com/watch?v=v3Qf0WAyT6c) 2026-01-05T22:53Z 330K followers, 11.6K engagements "Caterpillar C15 Over Head Valve Adjustment. #c15 #diesel #truck" [YouTube Link](https://youtube.com/watch?v=v6KVSWfn5is) 2024-12-17T16:25Z 330K followers, [----] engagements "Air Dryer Leaking On Semi Truck. Leaking Air Dryer. Low Air Pressure Semi Truck. Air Build Slow" [YouTube Link](https://youtube.com/watch?v=v_S26f_ks3s) 2024-05-31T22:25Z 330K followers, 97.7K engagements "🔩🚛 Loose Suspension Components Found Rear Axle Inspection 🚛🔩 🔩🚛 Loose Suspension Components Found Rear Inspection 🚛🔩 During inspection on this truck our specialist tech found loose suspension components on the rear axle. The rear suspension plays a major role in vehicle stability load support and tire wear so any looseness in this area should be addressed immediately. 💡 Why rear suspension components matter: Rear axle suspension components keep the axle properly aligned with the frame and help absorb road shock. When parts become loose the axle can shift under load affecting handling" [YouTube Link](https://youtube.com/watch?v=vsLHVFS_8Q4) 2025-12-16T21:08Z 330K followers, 11K engagements "🔍💨 EGR Cooler Inspection No Soot Buildup Found D13 Engine 💨🔍 🔍💨 EGR Cooler Inspection No Soot Buildup Found D13 Engine 💨🔍 During inspection on this Volvo D13 engine our specialist tech inspected the EGR cooler to verify any soot buildup restriction or internal blockage that could affect exhaust gas flow. As shown the EGR cooler was found clean and free of soot accumulation confirming proper exhaust flow through the system at this time. 💡 Why inspecting the EGR cooler is important: The EGR cooler helps control combustion temperatures and emissions by recirculating exhaust gases. When" [YouTube Link](https://youtube.com/watch?v=w4NVjky6uZk) 2025-12-18T17:46Z 330K followers, [----] engagements "💨🔧 Air Leak Found at Frame Quick Connector Freightliner Truck Inspection 🔧💨 💨🔧 Air Leak Found at Frame Quick Connector Freightliner Truck Inspection 🔧💨 During inspection on this Freightliner truck our specialist tech identified an air leak coming from a quick connector mounted on the frame. These fittings are critical for distributing air throughout the braking and suspension systems and even a small leak can impact overall air pressure performance. 💡 Common causes of quick connector air leaks: Worn or damaged internal O-rings over time Cracked plastic fittings due to vibration or" [YouTube Link](https://youtube.com/watch?v=wH6wpof0fhg) 2025-12-15T17:25Z 330K followers, 13.9K engagements "Signs Of A Worn Clutch. Slipping Clutch. Difficulty Shifting Gears.Clutch Pedal Feel.Noisy Operation To determine if the clutch is worn on a semi-truck you can look for several signs and perform specific checks: [--]. **Slipping Clutch:** - **Symptom:** The engine revs increase without a corresponding increase in vehicle speed especially under heavy load or during acceleration. - **Check:** While driving try accelerating in a high gear (e.g. 9th or 10th gear). If the engine revs up but the truck doesn't accelerate as expected the clutch may be slipping. [--]. **Difficulty Shifting Gears:** -" [YouTube Link](https://youtube.com/watch?v=y9Yca9LinGE) 2024-07-01T19:07Z 330K followers, 28.1K engagements "💧🔧 Coolant Pressure Test Performed Detroit [--] Series Engine 🔧💧 💧🔧 Coolant Pressure Test Performed Detroit [--] Series Engine 🔧💧 During inspection on this Detroit [--] Series engine our specialist tech performed a coolant pressure test to identify the source of a coolant leak. Pressure testing allows us to simulate operating conditions and locate leaks that may not be visible when the engine is cold or not running. As shown during testing the root cause of the coolant leak was traced to a fitting on the water pump. Under pressure the fitting was allowing coolant to escape confirming why" [YouTube Link](https://youtube.com/watch?v=yXF0_prRMUU) 2025-12-22T19:20Z 330K followers, [----] engagements "How Sensors Control the EGR System on a DD15 🔧💨⚙ On the intake side of the DD15 exhaust gas recirculation completes its path back into the engine. The EGR cooler feeds exhaust through a tube into the intake and a delta-P (differential pressure) sensor monitors pressure on both sides of the system. That sensor along with others like the intake temperature sensor helps the ECM control the EGR valve. If the delta-P passages clog EGR flow becomes inaccurate and drivability problems begin. Earlier designs tried using an intake throttle valve to help manage flow but many engines experienced" [YouTube Link](https://youtube.com/watch?v=ykdCeUEW42Y) 2025-12-29T18:09Z 330K followers, [----] engagements "DD15s Silent Killer 🧨 The $10 O-Ring That Destroys Engines 💀 Every DD15 engine has a hidden weak spot two tiny O-rings that can wipe out your oil pressure and wreck your bottom end. 🚛 Most drivers miss this until its too late. 💧 The fix Replace those seals before they harden and leak. 📉 Dont let a $10 part destroy a $40000 engine. 👉 Watch the full breakdown here: 🎬 Full Video: DD15s Hidden Oil Pressure Killer https://youtu.be/AntZWzlyKYA 📍 TAT Express Inc Diesel Diagnostics & Repair Dallas TX 📞 972-225-3017 🌐 TATExpressInc.com #DD15 #DetroitDiesel #DieselMechanic #TATExpress" [YouTube Link](https://youtube.com/watch?v=z-3tfIUVs08) 2025-11-02T16:48Z 330K followers, 31.4K engagements "Are Modern Diesel Engines Really Worse 🤔🔥🚛 A lot of people say modern engines are garbage compared to the old-school motors but that isnt the full story. Modern engines are actually more efficient cleaner and built with smarter fuel systems. Older engines may feel quicker and more responsive but they burn more raw fuel and rely on outdated technology. The DD15 was one of the first platforms to introduce a modern high-pressure fuel system and now most manufacturers use similar strategies. These improvements help engines run cleaner and more efficiently while still delivering power when" [YouTube Link](https://youtube.com/watch?v=zuVjjmXH_cE) 2025-12-31T19:08Z 330K followers, [----] engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@tatexpressinc TAT Express Inc.
TAT Express Inc. posts on YouTube about express, volvo, how to, flow the most. They currently have [-------] followers and [---] posts still getting attention that total [-----] engagements in the last [--] hours.
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Social Influence
Social category influence automotive brands 11.03% stocks 6.62% technology brands 2.21% countries 0.74% finance 0.74% social networks 0.74%
Social topic influence express #721, volvo 11.03%, how to 6.62%, flow 5.88%, matter 5.88%, systems 5.15%, gas 5.15%, metal 3.68%, tat 3.68%, belt 2.94%
Top accounts mentioned or mentioned by @tatexpressinccom @tatexpress
Top assets mentioned Alphabet Inc Class A (GOOGL)
Top Social Posts
Top posts by engagements in the last [--] hours
"Modern Diesel Engines Arent Forgiving Modern diesel engines are reliable but theyre not forgiving. Most failures dont start as catastrophic events. They start with fuel contamination skipped maintenance and excess heat. Over time that leads to: Low compression Low power Hard starts Expensive teardowns By the time you feel the problem the damage has already been happening. Maintenance isnt optional on modern engines. Its what keeps repairs from turning into rebuilds. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:"
YouTube Link 2026-02-11T12:00Z 330K followers, [----] engagements
"ITS NOT THE BELT Most drivers blame the belt but thats usually not what fails first. What actually wears out: Tensioners Idler pulleys Bearings Damper alignment These parts slowly lose tension and stability over hundreds of thousands of miles. The belt starts slipping just a little. It overheats. It loses grip. The engine still runs so the driver keeps going. Until coolant flow drops and thats when the real damage begins. 🎥 Full breakdown here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:"
YouTube Link 2026-02-06T01:00Z 330K followers, [----] engagements
"Best diagnose tool for semi trucks/ best scan tool for semi trucks/best semi truck diagnostic tool. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Best diagnose tool for semi trucksbest scan tool for semi trucksbest semi truck diagnostic toolheavy duty truck scan toolscan tooltruck drivercheck enginetruck drivingtrucking industrysemi truckowner operatorbest heavy duty truck scanner 2023heavy duty truck scanner softwareheavy duty truckscan big trucksdiagnostic toolbest diagnostic tool for truckswhich scan toolheavy dutyheavy"
YouTube Link 2023-06-25T17:15Z 330K followers, 84.9K engagements
"Clearing Fault Codes Can Cost You Thousands on a Diesel Truck Clearing fault codes might get you back on the road temporarily but on modern diesel trucks it often hides the real problem and leads to much more expensive failures. Derates and warning codes exist for a reason. When codes are cleared without fixing the root cause heat soot fuel and airflow issues continue to build and damage accelerates. In this video I explain: Why clearing codes doesnt fix the problem How ignored warnings turn into major repairs What drivers should do before clearing any faults How to protect your engine and"
YouTube Link 2026-02-12T01:00Z 330K followers, [---] engagements
"18 Wheeler DOT Inspection check list Semi Air Brake Inspection Roadside inspection for CMV Driver. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] In this video I go over an [--] wheeler DOT Inspection which includes the semi air brake system inspection semi truck exhaust leaks and steering mechanism. If you have a CDL driving license or taking a CDL driving test knowing about a DOT inspection can put you at an advantage. The video covers the inspection procedures for checking the brake system service brakes parking brake"
YouTube Link 2020-06-25T00:00Z 330K followers, 1.6M engagements
"🚛 Overhead Valve Adjustment on a Paccar MX-13 🛠⚙ A proper valve adjustment is key to keeping your Paccar MX-13 running smoothly and efficiently. Over time valve lash can drift out of spec causing performance issues poor fuel economy and even engine damage if left unchecked. 🔧 Why is an overhead valve adjustment important ✅ Ensures proper valve timing and fuel injection ✅ Prevents hard starts rough idling and misfires ✅ Reduces excessive wear on rocker arms and cam lobes ✅ Maximizes fuel efficiency and engine power 🚨 Signs your MX-13 may need a valve adjustment: ❌ Ticking or knocking noise"
YouTube Link 2025-03-07T19:24Z 330K followers, 24K engagements
"🚨 Modern Diesels Dont Fail Loudly They Fail Silent Let me show you what I mean. On modern diesel engines Detroit Cummins Volvo PACCAR there are multiple systems that can damage the engine without triggering a shutdown. No alarms. No dramatic failure. Just slow silent damage while the truck keeps running. Thats why we see engines come in running fine and leave needing major internal repairs. This clip is part of the full breakdown explaining: Which systems cause silent damage Why ECMs dont always protect the engine What drivers should watch for before its too late 👉 Watch the full video"
YouTube Link 2026-01-30T03:00Z 330K followers, [----] engagements
"Clearing Codes Is What Really Kills Trucks The warning light isnt the problem its the message. Clearing codes forcing regens or resetting derates without fixing the cause only accelerates damage to: Sensors DPF and SCR components Turbo and engine hardware Derates arent fun but ignoring them turns small problems into major repairs. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps: https://maps.app.goo.gl/ab7MssTdanWNQgea6 If your truck is throwing regen or derate warnings call before the system fails. #DieselRepair #RegenProblems #Derate"
YouTube Link 2026-02-11T05:00Z 330K followers, [----] engagements
"How to Replace A Wheel Seal on Semi/ Wheel Seal Leak/ Wheel Seal Installation/100kMiles Inspections New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice Technician"
YouTube Link 2020-07-26T23:00Z 330K followers, 498.6K engagements
"Paccar MX13 Excessive Coolant Pressure. How to Avoid Air Compressor Failure. Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell"
YouTube Link 2024-10-27T15:41Z 330K followers, 25K engagements
"🛞 Whats a Kingpin 🔍 Semi Truck Front End Explained 🧰🛠 Wondering what a kingpin is and why its so critical to your trucks steering and safety In this video we break down: What a kingpin does 🧩 Signs of wear and excessive play ⚠ Proper inspection methods using dial indicators 🧪 Maintenance tips to avoid costly front-end repairs 💵 What happens when it fails 😬 Whether you're a fleet owner or an owner-operator knowing how to maintain your kingpins can save you thousands and keep your rig tracking straight down the highway. 📍 TAT Express [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 🌐"
YouTube Link 2025-07-23T00:00Z 330K followers, 63.4K engagements
"Series 60/ Series [--] Detroit Diesel/ Vs/ DD15/ DD15 Detroit Diesel/ DD15 vs Series 60/ Which one New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Series 60/ Series [--] Detroit Diesel/ Vs/ DD15/ DD15 Detroit Diesel/ DD15 vs Series 60/ Which one In this video I will discuss the Detroit [--] series vs. the new DD15. I will break it down into three sections performance reliability and cost for repairs. So if you are currently in the market for a semi and can not decide which engine to choose or own either platform this video is for"
YouTube Link 2021-09-25T22:23Z 330K followers, 176.6K engagements
"Common Issues D13 Volvo/ Volvo trucks Volvo D13/ D13 Engine Problems/ Semi Truck/ PT 6/ #tatexpress Full Video https://youtu.be/nspV1ZtqP4A New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice"
YouTube Link 2023-04-27T20:37Z 330K followers, 33.9K engagements
"Block off plate on EGR crossover tube. Why deletes do not work and are not safe for your engine. The truth about semi deletes/Semi truck delete/diesel engine deletes/diesel delete explained https://youtu.be/BjjMdK97bvM New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] The truth about semi deletesSemi truck deletediesel engine deletesdiesel delete explaineddpf deleteegr deletediesel deleteemissions deletedd15 delete dpfdiesel tuningdpf removalhow tosemi truck deletedd15 deleteshould i delete my diesel the truth about diesel"
YouTube Link 2023-11-01T19:00Z 330K followers, 124.4K engagements
"Do Not Delete your Semi/ Do NOT delete your Semi/ Three Reasons Not to Delete your Semi/ DPF Deletes New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Do Not Delete your Semi/ Do NOT delete your Semi/ Three Reasons Not to Delete your Semi/ DPF Deletes I will discuss three reasons why you should not delete your semi and at the end of the video I will address some of the common misconceptions. dpf deletedelete egregr deleteemissions deletediesel deletehow todpf delete semi truckdiesel tuningshould i delete my diesel the truth"
YouTube Link 2021-12-04T01:27Z 330K followers, 190.1K engagements
"💨🔧 Boost Leaks Found on Intake System Cummins B6.7 Engine Diagnostic 🔧💨 💨🔧 Boost Leaks Found on Intake System Cummins B6.7 Engine Diagnostic 🔧💨 During inspection on this Cummins B6.7 engine our specialist tech identified boost leaks on the intake side of the system. The intake system is responsible for delivering compressed air from the turbocharger into the engine and when leaks are present the engine cannot receive the air pressure it needs to operate efficiently. 💡 Why intake boost leaks are a serious concern: Turbocharged diesel engines depend on sealed intake components to"
YouTube Link 2026-02-05T16:30Z 330K followers, [----] engagements
"Long or Failed Regen Dont Keep Driving It Long or incomplete regens arent random and they dont fix themselves. If your truck is dealing with: Long regens Frequent regens Incomplete regens Aftertreatment warnings or derates Driving it clearing codes or forcing regens only makes the damage worse. Get it checked before the one-box sensors or engine components fail. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps: https://maps.app.goo.gl/ab7MssTdanWNQgea6 If your truck is stuck in regen or derate call us and get it diagnosed the right way."
YouTube Link 2026-02-07T05:00Z 330K followers, [----] engagements
"🔥⛽ Injector [--] Carbon Buildup Found D13 Engine Inspection ⛽🔥 🔥⛽ Injector [--] Carbon Buildup Found D13 Engine Inspection ⛽🔥 During inspection on this D13 engine our specialist tech identified Injector [--] with carbon buildup past the sealing surface of the injector cup. This condition indicates that combustion gases are escaping where the injector should be properly sealed a problem that can affect engine performance and long-term reliability. 💡 Why carbon past the injector cup seal is a concern: The injector cup creates a tight seal between the injector and the cylinder head. When that seal"
YouTube Link 2026-02-03T14:23Z 330K followers, [----] engagements
"NO CODES. ENGINE DAMAGE. A slipping or failed belt doesnt just strand you it can silently destroy an engine under load. When coolant stops moving: Metal temps spike Cylinder liners overheat Heads warp EGR coolers crack Head gaskets let go Thats how a running truck turns into a $30000 engine failure. This is why belt condition tension and cooling system health matter more than most drivers realize. 🎥 Watch the full breakdown here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:"
YouTube Link 2026-02-05T01:00Z 330K followers, [----] engagements
"🔋❄ Thermo King APU Alternator Voltage Inspection ❄🔋 🔋❄ Thermo King APU Alternator Voltage Inspection ❄🔋 During inspection on this Thermo King APU our specialist tech performed a voltage output test on the APU alternator to verify that its charging correctly and supplying proper power to the batteries and APU system. Alternator voltage is critical for reliable APU operation especially when the truck is parked and relying on the APU for power. 💡 Why alternator voltage inspection matters: Ensures the APU is properly charging the batteries Prevents battery drain while parked Supports"
YouTube Link 2026-02-04T17:41Z 330K followers, [----] engagements
"🫧⛽ Air-in-Fuel System Test Bubbles Detected D13 Engine ⛽🫧 🫧⛽ Air-in-Fuel System Test Bubbles Detected D13 Engine ⛽🫧 During diagnostic testing on this D13 engine our specialist tech performed an air-in-fuel system test. As shown in the video air bubbles were present in the fuel supply confirming that air is entering the fuel system where it shouldnt. 💡 Why air in the fuel system is a problem: Diesel fuel systems are designed to operate under precise pressure. When air enters the system it disrupts fuel delivery causing inconsistent pressure and poor combustion. ⚙ Common causes of air"
YouTube Link 2026-01-30T19:37Z 330K followers, [----] engagements
"🔍🛠 Injector Visual Inspection Completed D13 Engine 🛠🔍 🔍🛠 Injector Visual Inspection Completed D13 Engine 🛠🔍 During a detailed inspection on this D13 engine our specialist tech performed a visual inspection of injectors [--] [--] and [--]. As shown no carbon buildup was found around the injector bodies or sealing areas which is a great indicator of proper combustion and sealing inside the cylinders. 💡 Why inspecting injectors matters: Carbon buildup around injectors can be a sign of leaking injector cups poor sealing combustion issues or early engine damage. Catching these issues early helps"
YouTube Link 2026-02-04T16:23Z 330K followers, [----] engagements
"$60 PART. $40K ENGINE. By [------------] miles belts tensioners and idlers are no longer just maintenance. Theyre risk management. Because a $300 tensioner or a $60 belt is protecting a $40000 engine. We see it all the time the engine still runs so nothing feels urgent until coolant flow drops and the damage is already done. This is why belt systems need to be evaluated as a complete system not just a belt swap. 🎥 Full explanation here: https://youtu.be/nJsdAI2xokI 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 📍 Google Maps:"
YouTube Link 2026-02-07T01:00Z 330K followers, [----] engagements
"🔧🚛 Grinding PTO Noise Gear Damage Found 💥🛠 Customer came in reporting a grinding noise when engaging their PTO. 🔊 The unit was also leaking oil and once removed we found internal gear damage inside the PTO. ❌ Metal wear ❌ Leaking housing ❌ Failed gear mesh This PTO needs to be replaced before it causes further driveline damage. If youre hearing grinding dont wait its only going to get worse. 📍 TAT Express Inc. [----] Langdon Rd Dallas TX 📞 Call: 972-225-3017 🛠 Keeping You Rolling #PTODamage #GrindingNoise #SemiTruckRepair #DrivelineRepair #DieselTruckTech #PreventiveMaintenance"
YouTube Link 2025-04-16T22:27Z 330K followers, [----] engagements
"🛢 Fuel Dilution The Silent Engine Killer Heres what silent engine damage actually looks like. Fuel can leak past the injectors and into the cylinders. That fuel washes the oil off the cylinder walls thins the engine oil and starts destroying: Piston rings Bearings Cylinder walls And the scariest part Theres often no immediate fault code to warn the driver. By the time symptoms show up the damage is already done. This clip is from the full video where I break down: How fuel dilution happens Why ECMs dont always catch it What early warning signs drivers miss 👉 Watch the full breakdown here:"
YouTube Link 2026-01-30T15:25Z 330K followers, [----] engagements
"The presence of smoke coming from a semi-truck engine could potentially indicate serious issues"
YouTube Link 2023-08-22T14:56Z 330K followers, 29K engagements
"Removing a semi truck tire from the rim. New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Now Hiring Here at TAT Express we are always looking to work with highly motivated people and service specialists to join our dedicated and knowledgeable team. CURRENT POSITIONS Service Advisor/ Service Manager https://tatexpressinc.com/service-advisor/ Journeyman Technician https://tatexpressinc.com/journeyman-technician/ Apprentice Technician https://tatexpressinc.com/apprentice-technician/ Tirereplacementtire repair18"
YouTube Link 2023-06-05T15:22Z 330K followers, 73.9K engagements
"Boost leak. How to find boost leak. Turbo boost leak. Loss of power. #diesel #mechanic Ensure peak performance and reliability for your semi-truck fleet with our expert routine maintenance services experience smoother rides increased fuel efficiency and minimized downtime keeping your business on the road to success Keep on Truckin' with Top-Notch Service https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Boost leak.How to find boost leakTurbo boost leakLoss of powerboost leak"
YouTube Link 2024-01-12T20:00Z 330K followers, 143.5K engagements
"White Smoke & Misfire on Startup Cummins N14 This is a cold start on a Cummins N14 with the exhaust manifold removed. You can clearly see: A startup misfire White smoke present Smoke concentrated at cylinder #1 White smoke on startup can point to fueling injector or combustion issues especially when one cylinder stands out from the rest. This is why visual inspection and proper diagnostics matter before throwing parts at an engine. 📍 TAT Express Heavy Duty Diesel Repair [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 If your truck is hard starting misfiring or smoking on cold starts get it"
YouTube Link 2026-02-07T21:48Z 330K followers, 14.4K engagements
"⚠💨 Cummins 6.7L EGR Codes Caused by Intake Tube Leak (EGR Checked Clean) 🚛🛠 This Cummins 6.7L came in with EGR fault codes but the issue wasnt the EGR valve itself. 🔎 Our tech found a large hole in the inlet tube feeding the air compressor which ties into the intake system. This unmetered air tricked the ECM and caused false EGR codes. 🧹 To confirm we also inspected the EGR components for soot buildup they were clean and free of restrictions. ✅ After replacing the damaged inlet tube the system was tested and the codes cleared. 👉 This repair shows why diagnostics matter: EGR codes dont"
YouTube Link 2025-08-30T16:03Z 330K followers, [----] engagements
"How to check suspension on a semi/ How to check my suspension/ How to know suspension problems semi New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] How to check suspension on a semi/ How to check my suspension/ How to know suspension problems semi owner operatorhow toowner operator truckersHow to check suspension on a semiHow to check my suspensionHow to know suspension problems semihow to check my suspensionhow to know if suspension needs replacinghow to know suspension is baddd15 detroit dieselfreightliner"
YouTube Link 2022-12-13T01:23Z 330K followers, 69.2K engagements
"How to check oil in semi truck/ How to check oil level in truck/ What is correct oil level in truck New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] How to check oil in semi-truck/ How to check oil level in truck/ What is correct oil level in truck How to check oil in semi-truckHow to check oil level in truckWhat is correct oil level in truckhow toengine oiloil changeengine oil leakengine oil explainedhow to check oil in semi truckoil change gone wronghow to check engine oil level in volvo truckhow to check oil in"
YouTube Link 2023-01-01T16:00Z 330K followers, 76.7K engagements
"🚨 This $60 Belt Can Kill a $40000 DD15 Engine If you own a DD15 this is one of the most important things you need to know. Theres a simple belt-driven component on these engines that can shut off coolant flow without setting a single fault code. No warning lights. No derate. Just rising engine temps and internal damage. We see this turn into overheated heads scored liners and full engine failures that couldve been prevented with a basic inspection. 👉 Watch the full breakdown here: https://youtu.be/nJsdAI2xokI If youre seeing overheating pressure issues or unexplained coolant problems get it"
YouTube Link 2026-01-31T03:00Z 330K followers, [----] engagements
"🔍⛽ Injector Cup Inspection D13 Engine Diagnostic ⛽🔍 🔍⛽ Injector Cup Inspection D13 Engine Diagnostic ⛽🔍 During inspection on this D13 engine our specialist tech performed a close inspection of the injector cups to verify proper sealing and rule out any combustion gas or fuel leakage into the cooling and fuel systems. 💡 What injector cups do: Injector cups act as a sealed barrier between the injector and the cylinder head. They prevent combustion gases fuel and coolant from mixing making them a critical component for engine performance and durability. ⚙ Why injector cup inspections are"
YouTube Link 2026-02-03T14:31Z 330K followers, [----] engagements
"🚨🚛 LOW COOLANT-SEMI TRUCK Coolant damage doesnt always happen the way drivers expect. Warning lights dont always come first. Shutdowns dont always prevent damage. And it never overheated doesnt always mean the engine is safe. Coolant temperature is measured at limited points while coolant flow travels through the engine in stages. When flow is reduced from leaks low coolant air pockets circulation issues or component failures localized overheating can begin before the dash shows anything abnormal. Thats why engines can suffer damage even when: Coolant loss seemed minor The engine shut"
YouTube Link 2026-02-06T01:01Z 330K followers, [---] engagements
"🔥🌫 EGR System Found Clogged Performance & Emissions Risk 🌫🔥 🔥🌫 EGR System Found Clogged Performance & Emissions Risk 🌫🔥 During inspection our specialist tech found the EGR (Exhaust Gas Recirculation) system clogged with soot buildup. The EGR system plays a major role in controlling engine emissions and maintaining proper combustion temperatures. When it becomes restricted it can negatively impact engine performance and fuel efficiency. 💡 Why a clogged EGR system matters: The EGR system recirculates a portion of exhaust gases back into the engine to help reduce combustion temperatures"
YouTube Link 2026-02-05T15:37Z 330K followers, [----] engagements
"🚛🔧 Mack MP8 Back in Action After Belt & Tensioner Replacement ⚙✅ Fresh off the lift this Mack MP8 is running smooth after a new belt & tensioner install. At TAT Express we perform Quality Control Checks on every unit before it leaves the shop to ensure your truck is road-ready and reliable. 💡 Pro Tip: Replace belts and tensioners every [--] years and inspect at every PM service to avoid roadside breakdowns. 📍 TAT Express Dallas TX Your go-to shop for Semi-Truck Repair Diesel Diagnostics Preventative Maintenance 📞 Call Today: 972-225-3017 📍 Visit Us: [----] Langdon Rd Dallas TX [-----] Google"
YouTube Link 2025-08-12T19:04Z 328K followers, [----] engagements
"🔧💨 Smooth Idle After V-Pod Replacement on a Series [--] Detroit 🛻🔥 If your Series [--] Detroit is idling rough surging or losing boostdont overlook the V-Pod actuator. This small but critical component controls turbo response and is a common failure point on this engine platform. In this clip we just finished replacing the V-Pod and the engine is back to smooth steady operation. No more hesitation no more erratic boost control. 💪 🧰 Common symptoms of a bad V-Pod: Inconsistent turbo boost Poor throttle response Fault codes related to boost control Down on power 📞 Dont wait until it fails"
YouTube Link 2025-07-10T19:58Z 328K followers, [----] engagements
"🚨 Volvo D13 Hard Start Dont Ignore the Warning Signs 🔧 This Volvo D13 struggled to startand that hesitation isnt just annoying. Its a symptom of deeper issues that need to be diagnosed before youre stuck roadside. Common causes of hard starts on the D13 include: 🔸 Weak fuel pressure or failing fuel pump 🔸 Air in the fuel system 🔸 Failing injectors or quantity control valve 🔸 Low battery voltage or poor connections 🔸 Faulty cam or crank sensors In this raw clip youll see what a real hard start looks like. If your truck sounds like this its time for a full diagnostic before it leaves you"
YouTube Link 2025-06-12T18:50Z 327K followers, [----] engagements
"🧠🧩 Cam Cap Placement Dont Mix These Up ⚠🔧 In this clip the tech is checking that the cam caps are installed in their correct positions during a cam housing replacement on a DD15. Cam caps are machined in place at the factory and are not interchangeable. ❌ Incorrect cap placement = improper clearance ❌ Can cause camshaft binding and damage ❌ Leads to premature wear or total failure ✅ Always verify cap markings match the housing position 💡 When replacing a cam housing or performing top-end work its critical to reinstall each cap exactly where it came from. Even slight mismatches can ruin a"
YouTube Link 2025-04-19T16:28Z 326K followers, [----] engagements
"Common Issues On Semi Trucks/ What to Check When Buying a Semi-Truck/ Buying A Semi Truck COMMON ISSUES ON A SEMI TRUCK In this video we dive into the most common issues that every semi-truck driver or owner should be aware of. From engine problems to electrical faults and everything in between we break down each issue explain the symptoms and offer practical solutions to keep your rig running smoothly. Whether youre on the road or in the shop this guide is essential for anyone who wants to avoid costly breakdowns and downtime. Dont forget to like subscribe and hit the bell icon for more"
YouTube Link 2024-08-22T02:00Z 324K followers, 49.7K engagements
"🛠🚛⚠ Major Issues Found During Routine Service This Couldve Ended Badly 🛠🚛⚠ This semi came in for regular service but during our courtesy inspection we found multiple hidden failures that couldve led to major problems on the road: 🔧 What we found: ❌ Large air leaks at fittings on the air supply tanks ❌ Chaffed ABS wire triggering ABS faults ❌ Broken interaxle air supply line ❌ Cracked oil filter stand pipe a serious risk for oil pressure loss 🛠 Why this matters: These kinds of issues can sneak up and cause breakdowns derates or even safety violations A proper inspection can catch them"
YouTube Link 2025-04-10T00:30Z 326K followers, [----] engagements
"🛞💧 Hidden Wheel Seal Failures Dont Miss These 🔍🚛 In this clip we highlight a failed wheel seal that wasnt obvious at first glance. These kinds of leaks can be hard to spot unless you get under the truck and inspect closely. Ignoring them leads to bigger problems like brake contamination bearing failure and DOT violations. ❌ Oil seepage not visible from side view ❌ Brake shoes at risk for contamination ❌ Missed in rushed inspections ✅ Found with hands-on inspection beneath the axle 💡 Wheel seals can fail from: Age and wear Overfilled or pressurized hubs Heat from braking Incorrect"
YouTube Link 2025-04-21T17:00Z 327K followers, [----] engagements
"⚙🚛 Volvo I-Shift TECU Replacement + Leak Check 🛠💨 This Volvo I-Shift came in with shifting issues and the TECU (Transmission Electronic Control Unit) needed replacement. After installing the new component our tech performed a leak test before final reassembly and discovered a leaking air supply fitting. ✅ Catching this issue during testing prevented the truck from going back on the road with a hidden air leak. ⚠ Always test for leaks before reinstall even new components can have issues. 👉 At TAT Express we follow strict procedures to make sure repairs are done right the first time and"
YouTube Link 2025-08-27T14:43Z 329K followers, [----] engagements
"✅⛽ Volvo D13 Clear Air-in-Fuel Test After Injector Cup Replacement 🚛🛠 After replacing the injector cups on this Volvo D13 our tech performed another air-in-fuel test to verify the repair. 🔎 This time the lines ran clear with no signs of air intrusion confirming the issue was resolved. ⚠ Failed injector cups are a common cause of hard starts rough idle and fuel/coolant cross-contamination. ✅ Post-repair testing ensures the job is done right and your truck is ready to run reliably. 👉 At TAT Express we dont just swap parts we verify repairs with proper testing so drivers can have confidence"
YouTube Link 2025-08-29T20:27Z 329K followers, [----] engagements
"❄⚡ A/C Compressor Test Clutch Not Engaging 🚛🔧"
YouTube Link 2025-09-12T13:02Z 329K followers, 15K engagements
"⛽⚙ Fuel Injector Calibration in Progress Volvo D13 Engine Diagnostic ⚙⛽ ⛽⚙ Fuel Injector Calibration in Progress Volvo D13 Engine Diagnostic ⚙⛽ In this video our specialist tech is performing a pumping fuel injector calibration on a D13 engine after diagnosing a code for injection pump fuel metering circuit short to ground or open. To locate the root cause our team followed a complete diagnostic procedure based on the active code and tested the following components: Wiring harness checked for damaged connectors or broken wires 🔌 Injector #2 inspected for internal failure and connector"
YouTube Link 2025-10-09T22:42Z 329K followers, [----] engagements
"🚛 DD15 Gen [--] Fuel Rail Leaking Pressure Limiting Valve 🛠💨 In this clip were inspecting a fuel leak at the pressure limiting valve (PLV) on a Gen [--] DD15 fuel rail. A leaking PLV can cause low fuel pressure hard starts rough idling and even power loss under load. 🔧 Common causes of a leaking pressure limiting valve: ❌ Excessive fuel rail pressure over time ❌ Worn-out internal components or failed seal ❌ Contaminated fuel causing premature wear 🛠 How to fix it: ✔ Confirm fuel leak at the PLV ✔ Replace the faulty valve and torque to spec ✔ Reset fuel system adaptations and verify pressure 🚨"
YouTube Link 2025-03-10T15:25Z 326K followers, [----] engagements
"Combustion Gases Entering Cooling System Test. Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon to stay updated with our"
YouTube Link 2024-08-18T18:36Z 324K followers, [---] engagements
"💨⛽ Volvo D13 Air-in-Fuel Test Bad Injector Cups 🚛🛠 Our tech performed an air-in-fuel test on this Volvo D13 after hard-start and drivability complaints. 🔎 The test showed excessive air in the fuel system and further inspection confirmed the issue: failed injector cups. ⚠ Bad injector cups allow fuel and air to cross-contaminate leading to: Hard starts or no starts ❌ Rough idle and poor performance Fuel in coolant contamination risks ✅ Replacing the injector cups resolves the leak path and restores proper system pressure. 👉 If your truck is showing hard starts bubbles in the fuel lines or"
YouTube Link 2025-08-29T18:44Z 329K followers, 10.1K engagements
"Tech Tip Clutch Position Sensor DT12 Transmission #diesel #truck #repairs Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon"
YouTube Link 2024-11-25T20:05Z 325K followers, [----] engagements
"🛠💨 Volvo D13 Low Power Fixed Cracked Injector Was the Hidden Cause 🔍🚛 This Volvo D13 came in with low power but it wasnt what it looked like We found minor boost leaks and a partially clogged EGR cooler during our first check but something still felt off. So we ran a cylinder balance testand sure enough one cylinder wasnt pulling its weight. A follow-up air-in-fuel test confirmed it: 🚨 Cracked injector on the sealing surface. This engine had nearly a million milesand those injectors were done. We installed a new set of injectors replaced the injector cups (a must on D13s) adjusted the"
YouTube Link 2025-05-10T21:51Z 327K followers, [----] engagements
"💨⚡ Air Switch Bench Test No Response = Bad Switch 🚛🛠"
YouTube Link 2025-08-28T19:17Z 329K followers, 29.5K engagements
"🚨 Loose Brake Hardware Found on Semi 🛑🔍 Safety First During a routine inspection our tech discovered loose brake hardware on this disc brake assembly a serious safety concern that couldve led to brake failure on the road. 🔧 The caliper mounting hardware was not torqued correctly and the movement was noticeable. This kind of oversight can lead to: ⚠ Uneven brake wear ⚠ Noise & vibration ⚠ Total loss of braking power under load At TAT Express we dont just change parts we inspect torque and verify every step. Our inspections catch problems before they become disasters. 📍 TAT Express 4140"
YouTube Link 2025-07-14T15:06Z 328K followers, [----] engagements
"💨 BOOST LEAK This Common Issue Is Robbing Your Power ⚠🚛 Loss of power Poor fuel economy One of the most overlooked culprits is a leaking Charge Air Cooler (CAC) hose or clamp. In this clip we show visible boost leaks found during a pressure test and its a perfect example of why every boost system should be inspected under pressure. Even a small leak in the CAC tubing can: Reduce turbo efficiency Lower fuel mileage Increase exhaust temps Lead to engine derates ✅ If your truck isnt pulling like it used to dont assume its the turbo it could be your CAC tubing. Let us test it before you throw"
YouTube Link 2025-06-20T15:18Z 327K followers, 32.8K engagements
"🔧 Is Your Steering Wheel Crooked Heres How to Check It Straight 🛞 A crooked steering wheel isnt just annoyingits a red flag. It could mean: Misaligned front end Worn suspension components Steering gear or linkage issues Prior repairs done without alignment In this clip we show you how to visually confirm steering wheel straightness during inspection. This is a simple but critical check to catch early signs of alignment or suspension problems. ✅ Always confirm alignment after steering or suspension repairs ✅ Check steering wheel straightness during routine service ✅ Crooked wheel = potential"
YouTube Link 2025-06-12T18:43Z 327K followers, [----] engagements
"🚛🔧 Customer Reported Popping Noise When Turning Heres What We Found 🔧🚛 🚛🔧 Customer Reported Popping Noise When Turning Heres What We Found 🔧🚛 A customer brought in this truck reporting a popping noise when turning the wheel halfway to each side. Our specialist tech performed a full inspection of the front end and pinpointed the issue: the driver-side leaf springs were squeaking on turns and showing signs of flattening. 💡 Possible causes of leaf spring wear or squeaking: Normal wear and tear over high mileage Corrosion or rust weakening the spring leaves 🌧 Overloading the truck"
YouTube Link 2025-10-03T21:25Z 329K followers, 10.1K engagements
"🔋 Loose Battery Cables = BIG Electrical Problems ⚠ In this raw clip our tech finds loose negative battery connectionsa common cause of starting issues warning lights and electrical malfunctions. ✅ Always inspect battery terminals for tightness and corrosion ⚠ Loose connections can trigger fault codes and shifting problems 💡 Regular battery checks = fewer headaches on the road Dont wait for a no-start or a misdiagnosed issueelectrical problems often start right here. 📍 Stop by TAT Express [----] Langdon Rd Dallas TX 📞 Call: 972-225-3017 #BatteryCheck #DieselDiagnostics #ElectricalIssue"
YouTube Link 2025-06-03T00:58Z 327K followers, [----] engagements
"⚙👋 Sloppy Gear Shifts Check Your Shifter Tower Bushings 🛠🚛 In this clip our tech shows excessive play in the gear shifter on a high-mile semi-truck. The shifter tower bushings are worn out making gear changes loose and unpredictable. ❌ Sloppy gear engagement ❌ Extra movement before gears lock in ❌ Hand hitting the dash when shifting ❌ Increased driver fatigue and risk of mis-shifts 💡 Shifter towers wear out with age and use especially in trucks with over 500K miles. If your gear shifts feel off or sloppy your tower bushings may be the issue. 📍 TAT Express [----] Langdon Rd Dallas TX 📞"
YouTube Link 2025-04-19T16:05Z 326K followers, [----] engagements
"💡⚠ Bad Headlight Connection Common Issue on Semi Trucks 🛠🚛 In this clip our tech is holding a semi-truck headlight that cuts off when its moved a clear sign of a bad internal connection. We see lighting issues like this all the time in the shop. Whether its a loose pin worn pigtail or vibration-damaged housing lighting problems can lead to: ❌ Failed DOT inspections ❌ Nighttime visibility issues ❌ Electrical shorts or system faults 🛠 Always check for movement-related cutoffs discoloration on pins or moisture inside the housing. If your lights flicker or fail dont wait its not just annoying"
YouTube Link 2025-04-17T13:33Z 326K followers, [----] engagements
"💧⚠👀 Pressurizing Coolant System on a D13 Volvo Tracking Down a Leak 🛠💧 In this clip were pressure testing the coolant system on a D13 Volvo to troubleshoot a suspected leak. With the system pressurized you can clearly see air bubbles forming at the top of the coolant reservoir a sign that air or combustion gases may be entering the cooling system. 🔍 What this could indicate: ❌ Internal coolant leak (head gasket EGR cooler or injector cups) ❌ Cracked cylinder head or block ❌ Air intrusion from a weak hose clamp or fitting 🛠 Pressure testing is a crucial step in pinpointing coolant system"
YouTube Link 2025-03-27T18:41Z 326K followers, [----] engagements
"🔧 Boost Leak Hunt on X15 💨 Low Boost = High Soot 🔥"
YouTube Link 2025-07-15T14:59Z 328K followers, 15.5K engagements
"🛠 Always Replace the Rear Main Seal During a Clutch Job Heres Why ⚠🧩 Doing a clutch job Dont skip the rear main seal. Even if its not leakingreplace it anyway. When you install a new clutch and flywheel the grip on the crankshaft increases significantly. That tighter engagement causes more flex at the rear of the crankand that flex is what leads to rear main seal failures after a clutch job. 💡 Why this matters: A new clutch grabs harder than a worn one Flexing increases at the rear of the crank That stress can cause the old seal to fail shortly after the job ✅ Always replace the rear main"
YouTube Link 2025-05-19T18:38Z 327K followers, [----] engagements
"Buying a Used Semi-Truck Top Tips to Avoid Costly Mistakes Stay safe on the road with TAT Express Inc. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] 📍 Based in Dallas TX TAT Express is not just a YouTube creator but also a trusted diesel engine repair shop. If you need expert service call us at 972-225-3017. 👍 If you found this video helpful please like subscribe and share it with others who might benefit from this information. 🔔 Dont forget to hit the bell icon to stay updated"
YouTube Link 2025-01-05T14:15Z 325K followers, [---] engagements
"💧🔧 Water Pump Leak Found Cummins Engine Inspection 🔧💧 💧🔧 Water Pump Leak Found Cummins Engine Inspection 🔧💧 During inspection on this Cummins engine our specialist tech identified a coolant leak coming from the water pump. The water pump is a critical component of the cooling system responsible for circulating coolant throughout the engine to maintain proper operating temperature. 💡 Why water pump leaks happen: Normal wear of internal seals over time Coolant contamination or improper coolant mixture Corrosion buildup inside the cooling system High mileage and constant heat cycles 🌡"
YouTube Link 2025-12-17T20:11Z 330K followers, [----] engagements
"⚙🔧 Input Shaft Wear Causing Pilot Bearing Play Transmission Inspection 🔧⚙ ⚙🔧 Input Shaft Wear Causing Pilot Bearing Play Transmission Inspection 🔧⚙ During inspection our specialist tech found wear on the transmission input shaft which is causing excessive play at the pilot bearing. While the input shaft itself may still rotate this wear prevents the pilot bearing from supporting the shaft correctly leading to movement where there should be none. 💡 Why this is important: The pilot bearing is designed to keep the input shaft perfectly centered. When the shaft is worn the bearing cant do"
YouTube Link 2025-12-26T18:25Z 330K followers, 20K engagements
"🔧⛽ Fuel Pump Installed & Torqued to Specs DD15 Engine Repair Completed ⛽🔧 🔧⛽ Fuel Pump Installed & Torqued to Specs DD15 Engine Repair Completed ⛽🔧 In this video you can see the fuel pump fully installed and torqued to specification on this DD15 engine. After replacement the system was inspected and verified to be operating correctly with no leaks no abnormal readings and no issues present. 💡 Why proper fuel pump installation matters: The fuel pump is responsible for delivering the correct fuel pressure to the engine. If its worn failing or installed incorrectly it can lead to: Low or"
YouTube Link 2025-12-30T22:11Z 330K followers, 11.1K engagements
"🛠🚛 Worn Cab Mounts Found Volvo Truck Ride & Stability Issue 🚛🛠 🛠🚛 Worn Cab Mounts Found Volvo Truck Ride & Stability Issue 🚛🛠 During inspection on this Volvo truck our specialist tech found the cab mounts worn out allowing excessive movement of the cab. Cab mounts are designed to support the cab absorb vibration and keep everything aligned between the cab and chassis. When they wear out that stability is lost. 💡 Why worn cab mounts are a problem: Cab mounts isolate road shock and engine vibration. Once they deteriorate the cab can shift creating discomfort for the driver and stress"
YouTube Link 2025-12-23T15:57Z 330K followers, [----] engagements
"Why Bad Coolant DESTROYS Modern Diesel Engines 💧🔥⚙ Under max load conditions EGR heat transfer can actually raise coolant temperature by [--] degrees. That extra heat puts serious strain on the cooling system and if coolant quality is poor things go downhill fast. When coolant turns rust-colored it means the protective inhibitors have been cooked out. At that point corrosion begins attacking internal cooling passages EGR coolers and cylinder head components. Combine that with already elevated temps from EGR flow and failure risk climbs quickly. Keeping clean properly mixed coolant isnt"
YouTube Link 2025-12-28T02:41Z 330K followers, [----] engagements
"⚙🔍 End Yoke Found With Excessive Play Driveline Inspection 🔍⚙ ⚙🔍 End Yoke Found With Excessive Play Driveline Inspection 🔍⚙ During inspection on this truck our specialist tech identified excessive play at the end yoke. The end yoke connects the driveshaft to the differential or transmission and any looseness in this area is a serious driveline concern. 💡 What causes end yoke play: Worn splines from high mileage or lack of lubrication Loose or damaged retaining hardware Excessive driveline vibration over time Worn bearings or improper previous repairs Operating with a leaking seal that"
YouTube Link 2025-12-17T20:06Z 330K followers, [----] engagements
"🛢⚠ Milky Oil Found on Oil Cap Cummins X15 Engine Inspection ⚠🛢 🛢⚠ Milky Oil Found on Oil Cap Cummins X15 Engine Inspection ⚠🛢 During inspection on this Cummins X15 engine our specialist tech found milky oil mix residue on the oil cap. This condition is a sign that moisture is mixing with engine oil which should never be ignored. While the engine does have some blow-by it is still an important factor to consider when diagnosing oil contamination. 💡 Possible causes of milky oil on the oil cap: Moisture buildup from short trips or extended idle time Condensation inside the crankcase that"
YouTube Link 2025-12-26T14:30Z 330K followers, [----] engagements
"💨🔧 Air Leak Found on Air Lines Inspection Matters 🔧💨 💨🔧 Air Leak Found on Air Lines Inspection Matters 🔧💨 During inspection our specialist tech identified an air leak coming from the air lines a common issue that can quickly affect the entire air system if not corrected. Even a small leak can prevent the system from building and holding proper PSI leading to brake performance issues suspension problems and longer air-up times. 💡 Possible causes of air line leaks: Worn or cracked air lines due to age or heat Loose or damaged fittings Abrasion from rubbing against frame or components"
YouTube Link 2025-12-11T23:01Z 330K followers, [----] engagements
"🛑🔧 ABS Valve Fittings Leaking Air System Integrity at Risk 🔧🛑 🛑🔧 ABS Valve Fittings Leaking Air System Integrity at Risk 🔧🛑 During inspection our specialist tech identified air leaks coming from the ABS valve fittings. These fittings are critical for maintaining proper air pressure and ensuring the ABS system responds correctly during braking events. Even small leaks in this area can affect braking performance and overall vehicle safety. 💡 Why ABS valve fitting leaks matter: The ABS valve controls air pressure during braking to prevent wheel lockup. When fittings leak the system may"
YouTube Link 2025-12-29T21:51Z 330K followers, [----] engagements
"🔧🚛 Fifth Wheel Rebuilt Safe & Secure Coupling Restored 🚛🔧 🔧🚛 Fifth Wheel Rebuilt Safe & Secure Coupling Restored 🚛🔧 During inspection our specialist tech identified excessive wear and play on this fifth wheel assembly which can compromise trailer coupling and overall driving safety. To restore proper operation a full fifth wheel rebuild was performed ensuring all internal components are functioning correctly and locking as designed. 💡 Why a fifth wheel rebuild is important: The fifth wheel is responsible for securely connecting the tractor to the trailer. Over time constant load"
YouTube Link 2026-01-02T14:06Z 330K followers, 12.4K engagements
"🛢🔧 Rocker Box Oil Leak Found DD15 Engine Inspection 🔧🛢 🛢🔧 Rocker Box Oil Leak Found DD15 Engine Inspection 🔧🛢 During inspection on this DD15 engine our specialist tech identified oil leaks coming from the rocker box. The rocker box seals the top of the cylinder head and keeps engine oil contained while lubricating critical valve train components. When this seal fails oil can travel down the engine creating larger messes and masking other potential leaks. 💡 Why rocker box leaks are a concern: Oil leaks can spread down the engine block making diagnosis harder Oil contamination can"
YouTube Link 2025-12-22T17:56Z 330K followers, [----] engagements
"🛠🚛 Worn Cab Mounts Found Freightliner Truck Inspection 🚛🛠 🛠🚛 Worn Cab Mounts Found Freightliner Truck Inspection 🚛🛠 During inspection on this Freightliner truck our specialist tech found the cab mounts worn out allowing excessive movement of the cab. Cab mounts are designed to isolate vibration support the cabs weight and keep it securely positioned on the frame when they fail that movement becomes noticeable and problematic. 💡 What causes cab mounts to wear out: Normal wear and tear from high mileage Constant vibration and road shock Rubber deterioration due to heat oil or age"
YouTube Link 2025-12-19T22:52Z 330K followers, [----] engagements
"Why EGR Systems Matter on Modern Semi Trucks 🚛🔥 How They Work Fail & How to Maintain Them Modern EGR systems are one of the most misunderstood parts of todays diesel engines and one of the most critical. In this video I break down exactly how EGR systems work on modern semi trucks why they exist the risks of deleting them the most common failure points and maintenance tips to keep your engine running longer and cleaner. Whether you run Detroit DD15 Cummins ISX PACCAR MX13 or Volvo D13 understanding how hot exhaust gases move through the EGR cooler valve throttle and intake can save you"
YouTube Link 2025-12-12T01:00Z 330K followers, [---] engagements
"Why EGR Coolers Take a Beating on Modern Engines 🔥💨💧 Modern EGR systems are under extreme stress especially on engines like the DD15. When the EGR valve opens exhaust gases are routed through the EGR cooler directly from the exhaust manifolds center section. That cooler is taking exhaust temperatures as high as 1200F and dropping them down to roughly 350F before the gases re-enter the intake. That massive temperature drop puts a heavy load on the cooling system. Over time this heat transfer combined with soot buildup and coolant flow issues can strain components and contribute to failures"
YouTube Link 2025-12-24T01:00Z 330K followers, [----] engagements
"⚡🚛 VGT Actuator Codes Heres What You Need to Know ⚡🚛 VGT Actuator Codes Heres What You Need to Know This truck came in with VGT actuator codes and our specialist tech performed all necessary tests. The resistance values were out of range confirming a bad turbo actuator. Replacement was recommended to restore proper turbo function and engine performance. 🔧 ⚠ Drivers should be aware: Loss of engine power & sluggish acceleration Engine may go into limp mode Increased exhaust temperatures & fuel consumption Risk of severe turbocharger damage if ignored Early detection and repair keep your"
YouTube Link 2025-09-24T21:07Z 330K followers, [----] engagements
"How to Prevent DD15 Cylinder Head Failures 🔧🔥💧 To route coolant through a modern DD15 cylinder head manufacturers had to remove a significant amount of metal. Thats why CGI (Compact Graphite Iron) is used its stronger but also more susceptible to micro-fractures especially in cylinders [--] and [--] which are the last to receive coolant. Prevention comes down to maintenance and temperature control. Cooling system issues like fans not engaging worn belts or tensioners poor coolant flow or ignored EGR faults can all drive temperatures higher inside the cylinder and intake. A sticking EGR valve or"
YouTube Link 2025-12-16T15:53Z 330K followers, [----] engagements
"Why CGI Cylinder Heads Are So Hard to Diagnose 🧠🔧🔥 CGI (Compact Graphite Iron) behaves completely different than traditional gray iron and thats why modern cylinder head failures are so difficult to trace. Many machine shops struggle to identify the root cause or wont even accept these heads because they dont have the equipment needed to detect micro-cracks buried deep inside the casting. These cracks form in extremely narrow areas like between valve bridges and often dont show up during pressure or combustion gas testing. The engine passes tests then fails once it reaches operating"
YouTube Link 2025-12-15T23:38Z 330K followers, [----] engagements
"This Is Why Bad Fuel Destroys Modern Diesels ⛽💥 Modern diesel engines use extremely high-pressure fuel pumps and the fuel itself is now part of the lubrication system. When lubricity drops or contamination gets in failure happens fast pumps rails injectors everything. In this video I break down why newer engines (Detroit Cummins PACCAR Volvo and more) are so sensitive to fuel quality how these pumps actually fail and what drivers and techs can do to prevent expensive damage. What we cover: Why fuel acts as lubrication in high-pressure pumps What happens when lubricity is too low Real-world"
YouTube Link 2025-12-29T01:42Z 330K followers, [---] engagements
"⚙🔍 Excessive Play & Broken Clutch Springs Found I-Shift Transmission Inspection 🔍⚙ ⚙🔍 Excessive Play & Broken Clutch Springs Found I-Shift Transmission Inspection 🔍⚙ During inspection of this I-Shift transmission our specialist tech identified excessive play in the clutch springs along with broken springs and visible scratches on the clutch components. These findings clearly indicate internal wear that can seriously affect shifting performance and drivetrain reliability. 💡 Why clutch springs matter in an I-Shift transmission: Clutch springs are designed to absorb shock maintain proper"
YouTube Link 2025-12-24T17:08Z 330K followers, [----] engagements
"🧐🔧⚠ Paccar MX-13 Head Gasket Replacement Checking Liner Protrusion 🛠🔍 📍 Location: https://maps.app.goo.gl/T3cTb5g6Qd98hTTP9 TAT Express Inc [----] Langdon Rd Dallas TX [-----] 📞 Call Now: 972-225-3017 When replacing a head gasket on a Paccar MX-13 checking liner protrusion is a critical step to ensure a proper seal and prevent future failures. 🔧 Why measure liner protrusion ✅ Ensures proper sealing of the new head gasket ✅ Prevents compression leaks and coolant intrusion ✅ Confirms the liners havent dropped which could lead to a repeat failure 🛠 What we found: ✔ Used a dial indicator to"
YouTube Link 2025-03-05T19:57Z 330K followers, 14.7K engagements
"⛽🔧 Fuel Leaks Found at High-Pressure Pump Fittings Diesel Engine Inspection 🔧⛽ ⛽🔧 Fuel Leaks Found at High-Pressure Pump Fittings Diesel Engine Inspection 🔧⛽ During inspection our specialist tech identified fuel leaks coming from the high-pressure fuel pump fittings. These fittings operate under extreme pressure and even a small leak in this area can quickly turn into a major performance and safety concern. 💡 Possible causes of high-pressure fuel pump fitting leaks: Worn or damaged sealing surfaces Loose or improperly torqued fittings O-rings or seals deteriorated from heat and pressure"
YouTube Link 2025-12-18T18:19Z 330K followers, [----] engagements
"💨🔧 Charge Air Cooler (CAC) Leak Found D13 Engine Inspection 🔧💨 💨🔧 Charge Air Cooler (CAC) Leak Found D13 Engine Inspection 🔧💨 During inspection on this Volvo D13 engine our specialist tech identified a leak in the Charge Air Cooler (CAC) system. The CAC is responsible for cooling the compressed air from the turbo before it enters the engine and when it leaks engine performance is immediately affected. 💡 Why a CAC leak matters: A leaking CAC allows pressurized air to escape meaning the engine is not receiving the correct amount of clean cooled air. This leads to poor combustion and"
YouTube Link 2025-12-18T17:25Z 330K followers, [----] engagements
"💨🔧 Air Hose Leak Found Compressor to Air Dryer Line 🔧💨"
YouTube Link 2025-12-11T21:09Z 330K followers, [----] engagements
"💨🛠⚠ EGR & DPF Faults on MX13 Clogged Sensor Ports = Major Soot Buildup 💨🛠⚠ This Paccar MX13 came in with EGR and DPF faults. During diagnostics we found the EGR delta pressure sensor ports completely clogged with soot a clear sign of heavy buildup in the emissions system. 🔧 What we found & recommend: ❌ Clogged delta-p sensor ports ❌ Signs of heavy soot throughout the EGR system ✔ Clean ports and sensors ✔ Inspect the EGR cooler and intake ✔ Check DPF system condition 🛠 Excessive soot buildup is preventable with proper maintenance and correct engine operation dont wait until youre"
YouTube Link 2025-04-10T17:58Z 330K followers, [----] engagements
"What the EGR System REALLY Does on a Diesel Engine 🔥💨⚙ What does the EGR system actually do on a diesel engine In modern inline-six engines used in semi trucks exhaust gases dont just leave the engine a portion is routed back into the intake through the EGR system. As exhaust gases drive the turbo and fresh air is cooled and fed into the intake the EGR valve diverts a controlled amount of exhaust through a cooler and reintroduces it into the intake stream. This process is called Exhaust Gas Recirculation (EGR). EGR isnt designed for performance its for emissions compliance and temperature"
YouTube Link 2025-12-19T22:25Z 330K followers, [----] engagements
"🔧⛽ Fuel Pump Replacement In Progress DD15 Engine ⛽🔧 🔧⛽ Fuel Pump Replacement In Progress DD15 Engine ⛽🔧 In this video our specialist tech is in the process of replacing the fuel pump on a DD15 engine. The fuel pump plays a critical role in supplying consistent fuel pressure to the injectors ensuring proper combustion and smooth engine operation. 💡 Why fuel pump condition is so important: A failing fuel pump can cause: Hard starts or no-start conditions Loss of power under load Rough idle or hesitation Inconsistent fuel pressure readings Check engine lights or derate conditions ⚙ Common"
YouTube Link 2025-12-30T20:57Z 330K followers, [----] engagements
"🔩🛢 Metal Found on Differential Magnets Front Differential Inspection 🛢🔩l 🔩🛢 Metal Found on Differential Magnets Front Differential Inspection 🛢🔩 While draining the front differential fluid on this Freightliner truck our specialist tech discovered large metal shavings attached to the magnetic drain plug an immediate red flag that internal wear was occurring. To go a step further the proper inspection tool was used to verify whether metal debris was present inside the differential which was confirmed as shown in the video. 💡 Why checking the magnets matters: The magnets inside the"
YouTube Link 2025-12-15T22:24Z 330K followers, [----] engagements
"Detroit DDEC Report fuel economy activity report diagnostic records idle time New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] In this video I go over the Detroit DDEC Report. DDEC Reports provide useful data reports including trip data fuel economy activity reports/monthly reports accumulation of idle time truck speed/RPM report diagnostic records and daily engine usage. Check out my other videos Most common issues on ISX15 https://youtu.be/Mx3zzLmAAzA [--] Wheeler DOT Inspection https://youtu.be/P-FKCHAncQU Most Common Issues"
YouTube Link 2020-09-13T15:00Z 330K followers, [----] engagements
"Why Idling & EGR Deletes Wreck DD15 Engines 😬🔥💨 Low duty-cycle driving and extended idling push unburned fuel and soot into the EGR cooler loading it up faster than normal. Thats why DD15 engines have strict idle limits. Modern DD15 turbos also no longer use actuators or wastegates. Instead the EGR valve now controls boost acting like a built-in wastegate. When people delete EGR systems the engine loses that boost control and over-boost becomes a real threat leading to major engine damage. Combine that with excessive soot from poor driving habits and failures start to compound fast."
YouTube Link 2025-12-28T16:35Z 330K followers, [----] engagements
"⚠Both Intake & Exhaust Valves TOO TIGHT on Cummins X15 🔧🔥Zero Lash = Major Risk 🚛💥 During an overhead adjustment on this Cummins X15 our techs found both intake and exhaust valves with zero lash meaning they were set too tight and not fully closing. This condition causes loss of compression poor fuel economy rough idle hard starts and eventually valve and seat damage. If left unchecked it can lead to expensive repairs or full engine failure. This is why routine overheads matter theyre not optional theyre essential. 📍 TAT Express [----] Langdon Rd Dallas TX [-----] 📞 972-225-3017 🌐 Find us"
YouTube Link 2025-07-18T13:54Z 330K followers, 41.1K engagements
"Why DD15 Cylinder Failures Hit #5 & #6 First 🔥💧⚙ How do you prevent cylinder failures on a modern engine like a DD15 You start by understanding where and why they fail. Detroit designed a coolant manifold to cool the exhaust side of the cylinder head but coolant flow and temperature monitoring arent equal across the head. Cylinders [--] and [--] are the last to receive coolant and temperature is only monitored at the outlet side not at the rear of the head where temps can be significantly higher. That imbalance creates hot spots which is why failures often show up in the rear cylinders first. The"
YouTube Link 2025-12-16T15:34Z 330K followers, [----] engagements
"🔍🌫EGR Ports Inspection No Soot Buildup Found 🌫🔍 🔍🌫EGR Ports Inspection No Soot Buildup Found 🌫🔍 During inspection on this truck our specialist tech checked the EGR ports to verify if there was any soot buildup or restriction inside the system. As shown in the video the EGR ports are clean and free of soot confirming proper exhaust gas flow at this stage of the inspection. 💡 Why inspecting EGR ports matters: The EGR ports allow exhaust gases to flow back into the engine to control emissions and combustion temperatures. When soot builds up in these ports it can restrict flow and lead"
YouTube Link 2025-12-29T20:16Z 330K followers, [----] engagements
"🔧🛢 High-Pressure Pump Reseal Reassembly in Progress (Power Stroke Engine) 🛢🔧 🔧🛢 High-Pressure Pump Reseal Reassembly in Progress (Power Stroke Engine) 🛢🔧 In this video our specialist tech is putting everything back together after successfully resealing the high-pressure fuel pump on this Power Stroke engine. The critical sealing work has already been completed and this final stage ensures all components are installed correctly torqued to spec and ready for operation. 💡 Why resealing the high-pressure pump matters: The high-pressure pump is responsible for delivering fuel at precise"
YouTube Link 2025-12-12T20:17Z 330K followers, [----] engagements
"Localized Heating: The Hidden Cause of DD15 Head Failures 🔥💧⚙ On modern engines like the DD15 the rear cylinders are the last to receive coolant. That creates localized heating especially in cylinders [--] and [--]. While Detroit monitors coolant temperature at the outlet of the head it doesnt capture the true temperatures at the rear where heat builds inside the cylinder head. If coolant flow drops even slightlydue to low coolant thermostat issues leaks poor fan operation or restricted flowthe rear cylinders get hotter first. That localized heat leads to micro-fractures inside the CGI casting"
YouTube Link 2025-12-17T16:31Z 330K followers, [---] engagements
"🔧🛢 Pinion Seal Replacement Hino [---] Truck 🛢🔧 🔧🛢 Pinion Seal Replacement Hino [---] Truck 🛢🔧 During inspection on this Hino [---] our specialist tech found the pinion seal leaking at the differential. The pinion seal is responsible for keeping gear oil sealed inside the differential while allowing the driveshaft to rotate smoothly. When this seal fails gear oil begins to leak putting critical drivetrain components at risk. 💡 Common causes of pinion seal leaks: Normal wear and hardening of the seal over time Heat and vibration from daily operation 🌡 Excessive driveline movement or"
YouTube Link 2025-12-23T18:03Z 330K followers, [----] engagements
"💨🔧 Air Leaks Found on Firewall Air Lines Freightliner Truck Inspection 🔧💨 💨🔧 Air Leaks Found on Firewall Air Lines Freightliner Truck Inspection 🔧💨 During inspection on this Freightliner truck our specialist tech identified air leaks coming from multiple air line fittings located at the firewall. These air lines are critical for supplying and distributing air to key systems and even small leaks in this area can affect overall air system performance. 💡 Why air leaks at the firewall matter: Air lines at the firewall feed essential components such as brake controls and air accessories."
YouTube Link 2025-12-24T18:21Z 330K followers, 43.8K engagements
"❄🔧 A/C Compressor Inspection Operating Properly 🔧❄ ❄🔧 A/C Compressor Inspection Operating Properly 🔧❄ In this video our specialist tech performs an A/C compressor inspection verifying proper operation of the system. As shown the compressor is engaging and functioning correctly indicating that this component is not the source of any A/C performance concerns at this time. 💡 Why inspecting the A/C compressor matters: The A/C compressor is the heart of the air conditioning system. It pressurizes and circulates refrigerant throughout the system allowing your cab to cool properlyespecially"
YouTube Link 2025-12-30T19:17Z 330K followers, [----] engagements
"⚠🔎 Kingpin Play Over .010 Out of Spec 🚛🛠 Our tech measured the kingpin play using a dial indicator and the reading came back just over .010. Thats beyond spec for most kingpins and a clear sign the front end needs attention. 🔎 Why this matters: Excessive play = unsafe steering & poor handling ❌ Causes uneven tire wear and alignment issues ⚠ Can lead to DOT violations and costly roadside downtime 💸 ✅ Catching this early allows repairs before a complete kingpin failure. 👉 Dont wait until your steering feels sloppy or your truck is pulled out of service schedule a front end inspection"
YouTube Link 2025-09-10T13:01Z 330K followers, [----] engagements
"💨🔧 Air Leaks Found at Fifth Wheel Valve Fittings Freightliner Inspection 🔧💨 💨🔧 Air Leaks Found at Fifth Wheel Valve Fittings Freightliner Inspection 🔧💨 During inspection on this truck our specialist tech identified air leaks coming from fittings around the fifth wheel valve. The fifth wheel valve controls the air supply to the trailers locking mechanism making it a critical safety component for coupling and uncoupling operations. 💡 Why fifth wheel valve air leaks matter: The fifth wheel valve must maintain consistent air pressure to properly lock and release the trailer. Even small"
YouTube Link 2025-12-29T18:35Z 330K followers, [----] engagements
"🔧⚠ Broken Clutch Springs Found Internal Damage Identified ⚠🔧 🔧⚠ Broken Clutch Springs Found Internal Damage Identified ⚠🔧 During inspection of this automatic transmission our specialist tech discovered metal pieces inside the flywheel housing. After further evaluation it was confirmed that the clutch springs were broken allowing metal fragments to circulate inside the bell housing area. 💡 Why this is a serious finding: Clutch springs play a critical role in absorbing shock and maintaining smooth engagement between the engine and transmission. When they break the transmission can no"
YouTube Link 2025-12-23T17:17Z 330K followers, [----] engagements
"🛠 Cummins X15 EGR Cooler Inspection 🔎💨 Excessive Soot = Future Problems 🚨 Our technician is inspecting the EGR cooler on a Cummins X15 for excessive soot buildup a common issue that leads to: ❌ Reduced fuel economy ❌ Loss of power ❌ Aftertreatment system failures ❌ Premature engine wear Heavy soot in the EGR cooler can choke your system and cause recurring fault codes regen problems and even DPF damage. Catching this early can save thousands in future repairs. At TAT Express we go beyond the basics to diagnose what others miss. If your truck is down on power smoking or throwing EGR/DPF"
YouTube Link 2025-07-15T14:53Z 330K followers, [----] engagements
"💨🔍 Intake Leak Found Cummins X15 Engine Inspection 🔍💨 💨🔍 Intake Leak Found Cummins X15 Engine Inspection 🔍💨 During inspection on this X15 engine our specialist tech located an intake leak affecting the engines air delivery and overall performance. Even a single leak in the intake system can cause major drivability issues especially under load. 💡 Why intake leaks matter: The intake system must stay completely sealed to ensure the turbocharger delivers the correct amount of boost to the engine. When theres a leak: Boost pressure drops Fuel-to-air ratio becomes unbalanced Power and"
YouTube Link 2025-12-11T23:07Z 330K followers, [----] engagements
"Paccar MX13 excessive pressure in coolant system. Full video https://youtu.be/8nk7FIGhs7g New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] What causes pressure build up in cooling systemCompression in coolant systemEngine coolant tankdd15mx13paccar mx13common problems on paccar mx13coolant pressure in coolant tankcheck engine lights on paccar mx13paccar mx13 common problemspaccar mx13 engine fan failedpaccar mx13 milmil paccar mx13paccar mx13 stop lightpaccar mx13 check engine lightpaccar air compressor failurepaccar mx13"
YouTube Link 2023-12-09T16:00Z 330K followers, 12K engagements
"🔌⚠ ECM Harness Pigtail Found Corroded & Worn Electrical Issue Identified ⚠🔌 🔌⚠ ECM Harness Pigtail Found Corroded & Worn Electrical Issue Identified ⚠🔌 During inspection on this truck our specialist tech found the ECM harness pigtail severely corroded and worn out. This connector is critical for proper communication between the engine control module (ECM) and multiple engine systems. When corrosion or damage is present electrical signals can become unstable or interrupted. 💡 Why a damaged ECM pigtail is a serious concern: The ECM relies on clean consistent electrical connections to"
YouTube Link 2025-12-19T17:01Z 330K followers, [----] engagements
"The importance of inspecting a truck before purchasing. Use DDEC reports to view the history of unit Full Live https://youtube.com/live/Jk-IbaxL1oA Maximize your trucking potential Our tailored preventive maintenance program is your key to unmatched reliability and efficiency for your semi-trucks. Don't let breakdowns slow you downpartner with us and experience worry-free journeys on the road to success. https://tatexpressinc.com/contact-us/ Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. CALL NOW 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Recommend following a server"
YouTube Link 2024-02-27T23:00Z 330K followers, [---] engagements
"How to repair coolant in fuel cross-contamination on X15 Cummins. Fuel in coolant Cummins X15 #x15 Full Video https://youtu.be/XLv8YGQN_kY New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6 TAT Express Inc. 972-225-3017 [----] Langdon Rd. Dallas TX [-----] Coolant in fuelcoolant in fuel water separatorcoolant in fuel Cummins ISXcoolant in fuel systemcoolant in fuelcoolant in fuel tankcoolant in fuel filterfreightliner cascadiacoolant in diesel fuelcummins isx15cummins fuel pump problemsLow power CumminsCummins engine low powerCummins power lossCummins ISX loss of powerISX15cummins isx15"
YouTube Link 2023-11-04T19:00Z 330K followers, [----] engagements
"😼🚛 C15 CAT Turbo Replacement & Boost Leak Test 🔩🔥 🚛 C15 CAT Turbo Replacement & Boost Leak Test 🛠🔥 Just swapped out a failed turbo on this Caterpillar C15 and made sure to follow up with a boost leak test to ensure peak performance. 🔧 Why the turbo failed: Excessive shaft play and oil leaks were causing low boost pressure and power loss. ✅ Steps we took: [--] Removed the old turbo and inspected for damage. [--] Installed a new turbo and checked all connections. [--] Conducted a boost leak test to confirm no air loss. 💨 Boost leaks = lost power & efficiency A small leak can make a big"
YouTube Link 2025-02-26T22:29Z 330K followers, [----] engagements
"Why Cylinder Heads FAIL Even When Tests PASS 🤯🔥 Why are we still seeing cylinder head failures when combustion gas and coolant pressure tests pass The answer is in the material. Modern engines use CGI (Compact Graphite Iron) stronger than gray iron but not without tradeoffs. These heads can develop micro-cracks inside the casting that dont show up during pressure testing. They only leak once the engine reaches operating temperature especially in tight areas like valve bridges and cooling ports. Thats why some failures are so hard to diagnose until its too late. Understanding this helps"
YouTube Link 2025-12-13T16:16Z 330K followers, [----] engagements
"🔧⚙ Transmission Input Shaft & Countershaft Brake Reseal Repair In Progress ⚙🔧 🔧⚙ Transmission Input Shaft & Countershaft Brake Reseal Repair In Progress ⚙🔧 These seals play a critical role in keeping transmission oil contained and ensuring proper clutch engagement and shifting performance. 💡 Why resealing these components is important: The input shaft seal prevents oil from leaking into the clutch housing while the countershaft brake seal ensures clean and consistent shiftingespecially on automated and manual transmissions. When these seals fail oil leaks can contaminate the clutch cause"
YouTube Link 2025-12-31T22:31Z 330K followers, [----] engagements
"🛑💨 Steer Axle Brake Chamber Leak Found Freightliner Truck 💨🛑 🛑💨 Steer Axle Brake Chamber Leak Found Freightliner Truck 💨🛑 During inspection on this Freightliner truck our specialist tech found a brake chamber leaking on the steer axle. The steer axle is critical for both stopping power and directional control so any air loss in this area is a serious safety concern that must be addressed immediately. 💡 Why a leaking brake chamber is a big deal: Brake chambers convert air pressure into mechanical force to apply the brakes. When a chamber leaks it cannot maintain proper pressure"
YouTube Link 2025-12-26T18:55Z 330K followers, [----] engagements
"🔥🛢 Transmission Oil Cooler (Heater Exchanger) Leak Found Columbia Truck 🛢🔥 🔥🛢 Transmission Oil Cooler (Heater Exchanger) Leak Found Columbia Truck 🛢🔥 During inspection on this Columbia truck our specialist tech found the heater exchanger used for the transmission oil cooler leaking. This component helps regulate transmission temperature by transferring heat between fluids and when it leaks it can quickly turn into a major reliability issue. 💡 Why this matters: The transmission oil cooler keeps fluid at the correct operating temperature. A leak can cause fluid loss overheating and"
YouTube Link 2025-12-12T19:16Z 330K followers, [----] engagements
"How EGR Works on a DD15 🔥💨⚙ So how does the EGR system actually work on a DD15 The DD15 uses a three-piece exhaust manifold and the EGR passage is built directly into the center section of that manifold. When the EGR valve opens a portion of exhaust gas is diverted through a hot pipe and into the EGR cooler. Inside the cooler exhaust gas flows through internal tubes surrounded by engine coolant. The gas enters extremely hot and exits at a lower temperature before being routed back into the intake. Its still hot just controlled. This cooling process is critical for managing combustion"
YouTube Link 2025-12-22T00:43Z 330K followers, [----] engagements
"Why Removing EGR Hurts Modern Engines 😬💨🔥 A lot of people hate EGR because exhaust is being recirculated but modern engines are designed to run with it. When EGR systems are deleted or tampered with the engine no longer operates the way it was engineered. It may run for a while but efficiency fuel mileage and reliability all suffer. Modern engines are actually more efficient and get better fuel economy than older models they just require different maintenance. Once you understand how these systems work maintaining them becomes easier and far less expensive than repeated breakdowns caused"
YouTube Link 2026-01-05T18:40Z 330K followers, [----] engagements
"🛢🔧 Flywheel Housing Leak Found DD15 Engine Inspection 🔧🛢 🛢🔧 Flywheel Housing Leak Found DD15 Engine Inspection 🔧🛢 During inspection on this DD15 engine our specialist tech identified oil leaks coming from the flywheel housing area. Leaks in this location are critical because they often indicate a sealing issue between major engine components and can allow oil to spread throughout the lower engine and drivetrain area. 💡 Why flywheel housing leaks matter: The flywheel housing seals the rear of the engine keeping oil contained while protecting the clutch and transmission components."
YouTube Link 2025-12-22T17:26Z 330K followers, 15.6K engagements
"🌬🚛 Cabin Recirculating Filter Replaced Peterbilt Truck Service 🚛🌬"
YouTube Link 2025-12-19T17:13Z 330K followers, [----] engagements
"Why Dirty Sensors Kill EGR Systems 😬💨🔧 All the data that controls EGR flow is read through multiple sensors intake sensors delta-P sensors and others throughout the system. Over time those sensors get clogged with soot and when the readings go bad the ECM starts making the wrong adjustments. Bad data = wrong EGR operation. Wrong EGR operation = higher heat poor performance and premature failures. Ignoring dirty or failing sensors doesnt just cause drivability issues it can shorten the life of the entire EGR system. Regular inspection and cleaning should be part of every modern diesel"
YouTube Link 2026-01-04T21:25Z 330K followers, [---] engagements
"⚙🚨 Excessive Turbocharger Turbine Play Found Early Failure Warning 🚨⚙Dallas ⚙🚨 Excessive Turbocharger Turbine Play Found Early Failure Warning 🚨⚙ During inspection our specialist tech identified excessive play in the turbocharger turbine. This condition is a strong indicator that the turbocharger is wearing internally and no longer operating within proper tolerances. 💡 What causes excessive turbine play: Normal wear over time and high mileage Insufficient lubrication due to oil supply issues 🛢 Contaminated oil accelerating bearing wear Overheating from exhaust restrictions or failed"
YouTube Link 2025-12-17T19:55Z 330K followers, [----] engagements
"🛢🔍 Oil Residue Found on Bell Housing Early Warning Sign 🔍🛢 🛢🔍 Oil Residue Found on Bell Housing Early Warning Sign 🔍🛢 During inspection our specialist tech identified oil residue present on the bell housing. While this may look minor at first glance oil in this area is often a sign of an active or developing internal engine or transmission leak that should never be ignored. 💡 What oil residue on the bell housing can indicate: Rear main seal starting to leak Flywheel housing gasket seepage Transmission input shaft seal leak Excessive crankcase pressure pushing oil past seals Previous"
YouTube Link 2025-12-24T17:47Z 330K followers, [----] engagements
"How EGR Controls Turbo Boost on a DD15 🔥💨⚙ When inspecting EGR coolers the inlet side matters most it sees the hottest exhaust gases and the most abuse. On modern DD15 engines Detroit eliminated traditional wastegates and turbo actuators. Instead the EGR valve is used to control boost pressure. Thats critical to understand because when the EGR system is removed or disabled boost can spike uncontrollably leading to serious engine damage. Add poor maintenance skipped valve adjustments overdue fuel filters neglected oil changes and soot production increases. That soot builds up inside the EGR"
YouTube Link 2025-12-22T17:33Z 330K followers, [----] engagements
"⛽📉 Fuel Pressure Fluctuating at Idle DD15 Engine Diagnostic 📉⛽ ⛽📉 Fuel Pressure Fluctuating at Idle DD15 Engine Diagnostic 📉⛽ During inspection and live data monitoring on this DD15 engine our specialist tech noticed that actual fuel pressure was fluctuating at idle instead of matching the desired fuel pressure. At idle fuel pressure should remain steady fluctuations indicate the fuel system is struggling to regulate pressure correctly. 💡 What can cause fuel pressure fluctuations at idle: Failing fuel pressure regulator or control valve Air entering the fuel system (loose fittings worn"
YouTube Link 2025-12-16T21:45Z 330K followers, [---] engagements
"🚨🛑 Brake Chamber Leak Found Steer Axle Freightliner Truck 🛑🚨 🚨🛑 Brake Chamber Leak Found Steer Axle Freightliner Truck 🛑🚨 During inspection on this Freightliner truck our specialist tech identified a leaking brake chamber on the steer axle. The steer axle is critical for both stopping power and directional control so any air leak in this area is a serious safety concern that should never be ignored. 💡 Why a leaking brake chamber matters: Brake chambers convert air pressure into mechanical force to apply the brakes. When a chamber leaks it cannot maintain proper air pressure reducing"
YouTube Link 2025-12-15T17:20Z 330K followers, 12.2K engagements
"🔩🚛 Loose Rear Suspension Hardware Found Safety Inspection 🚛🔩 🔩🚛 Loose Rear Suspension Hardware Found Safety Inspection 🚛🔩 During inspection our specialist tech identified loose hardware on the rear suspension. Suspension hardware plays a critical role in keeping the axle properly aligned and securely mounted to the frame. When bolts or fasteners loosen it can affect handling stability and overall safety. 💡 Why loose suspension hardware is a serious concern: The rear suspension supports vehicle load and controls axle movement. Loose hardware allows unwanted movement that can cause"
YouTube Link 2026-01-05T22:53Z 330K followers, 11.6K engagements
"Caterpillar C15 Over Head Valve Adjustment. #c15 #diesel #truck"
YouTube Link 2024-12-17T16:25Z 330K followers, [----] engagements
"Air Dryer Leaking On Semi Truck. Leaking Air Dryer. Low Air Pressure Semi Truck. Air Build Slow"
YouTube Link 2024-05-31T22:25Z 330K followers, 97.7K engagements
"🔩🚛 Loose Suspension Components Found Rear Axle Inspection 🚛🔩 🔩🚛 Loose Suspension Components Found Rear Inspection 🚛🔩 During inspection on this truck our specialist tech found loose suspension components on the rear axle. The rear suspension plays a major role in vehicle stability load support and tire wear so any looseness in this area should be addressed immediately. 💡 Why rear suspension components matter: Rear axle suspension components keep the axle properly aligned with the frame and help absorb road shock. When parts become loose the axle can shift under load affecting handling"
YouTube Link 2025-12-16T21:08Z 330K followers, 11K engagements
"🔍💨 EGR Cooler Inspection No Soot Buildup Found D13 Engine 💨🔍 🔍💨 EGR Cooler Inspection No Soot Buildup Found D13 Engine 💨🔍 During inspection on this Volvo D13 engine our specialist tech inspected the EGR cooler to verify any soot buildup restriction or internal blockage that could affect exhaust gas flow. As shown the EGR cooler was found clean and free of soot accumulation confirming proper exhaust flow through the system at this time. 💡 Why inspecting the EGR cooler is important: The EGR cooler helps control combustion temperatures and emissions by recirculating exhaust gases. When"
YouTube Link 2025-12-18T17:46Z 330K followers, [----] engagements
"💨🔧 Air Leak Found at Frame Quick Connector Freightliner Truck Inspection 🔧💨 💨🔧 Air Leak Found at Frame Quick Connector Freightliner Truck Inspection 🔧💨 During inspection on this Freightliner truck our specialist tech identified an air leak coming from a quick connector mounted on the frame. These fittings are critical for distributing air throughout the braking and suspension systems and even a small leak can impact overall air pressure performance. 💡 Common causes of quick connector air leaks: Worn or damaged internal O-rings over time Cracked plastic fittings due to vibration or"
YouTube Link 2025-12-15T17:25Z 330K followers, 13.9K engagements
"Signs Of A Worn Clutch. Slipping Clutch. Difficulty Shifting Gears.Clutch Pedal Feel.Noisy Operation To determine if the clutch is worn on a semi-truck you can look for several signs and perform specific checks: [--]. Slipping Clutch: - Symptom: The engine revs increase without a corresponding increase in vehicle speed especially under heavy load or during acceleration. - Check: While driving try accelerating in a high gear (e.g. 9th or 10th gear). If the engine revs up but the truck doesn't accelerate as expected the clutch may be slipping. [--]. Difficulty Shifting Gears: -"
YouTube Link 2024-07-01T19:07Z 330K followers, 28.1K engagements
"💧🔧 Coolant Pressure Test Performed Detroit [--] Series Engine 🔧💧 💧🔧 Coolant Pressure Test Performed Detroit [--] Series Engine 🔧💧 During inspection on this Detroit [--] Series engine our specialist tech performed a coolant pressure test to identify the source of a coolant leak. Pressure testing allows us to simulate operating conditions and locate leaks that may not be visible when the engine is cold or not running. As shown during testing the root cause of the coolant leak was traced to a fitting on the water pump. Under pressure the fitting was allowing coolant to escape confirming why"
YouTube Link 2025-12-22T19:20Z 330K followers, [----] engagements
"How Sensors Control the EGR System on a DD15 🔧💨⚙ On the intake side of the DD15 exhaust gas recirculation completes its path back into the engine. The EGR cooler feeds exhaust through a tube into the intake and a delta-P (differential pressure) sensor monitors pressure on both sides of the system. That sensor along with others like the intake temperature sensor helps the ECM control the EGR valve. If the delta-P passages clog EGR flow becomes inaccurate and drivability problems begin. Earlier designs tried using an intake throttle valve to help manage flow but many engines experienced"
YouTube Link 2025-12-29T18:09Z 330K followers, [----] engagements
"DD15s Silent Killer 🧨 The $10 O-Ring That Destroys Engines 💀 Every DD15 engine has a hidden weak spot two tiny O-rings that can wipe out your oil pressure and wreck your bottom end. 🚛 Most drivers miss this until its too late. 💧 The fix Replace those seals before they harden and leak. 📉 Dont let a $10 part destroy a $40000 engine. 👉 Watch the full breakdown here: 🎬 Full Video: DD15s Hidden Oil Pressure Killer https://youtu.be/AntZWzlyKYA 📍 TAT Express Inc Diesel Diagnostics & Repair Dallas TX 📞 972-225-3017 🌐 TATExpressInc.com #DD15 #DetroitDiesel #DieselMechanic #TATExpress"
YouTube Link 2025-11-02T16:48Z 330K followers, 31.4K engagements
"Are Modern Diesel Engines Really Worse 🤔🔥🚛 A lot of people say modern engines are garbage compared to the old-school motors but that isnt the full story. Modern engines are actually more efficient cleaner and built with smarter fuel systems. Older engines may feel quicker and more responsive but they burn more raw fuel and rely on outdated technology. The DD15 was one of the first platforms to introduce a modern high-pressure fuel system and now most manufacturers use similar strategies. These improvements help engines run cleaner and more efficiently while still delivering power when"
YouTube Link 2025-12-31T19:08Z 330K followers, [----] engagements
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