TAT Express Inc
π©π Transmission Found with Missing and Loose Flywheel Housing Bolts! ππ©
During an inspection on this Volvo truck, our technician discovered that several flywheel housing bolts were missing, and others were loose. As a result, the transmission was no longer making full contact with the flywheel housingβa serious condition that can lead to costly drivetrain damage if not corrected immediately. β οΈ
π‘ What do the flywheel housing bolts do?
These bolts securely fasten the transmission to the engineβs flywheel housing (bell housing), ensuring the transmission remains properly aligned with the flywheel and clutch assembly. This precise alignment is critical for smooth power transfer and the longevity of drivetrain components.
β οΈ What can happen when bolts are missing or loose?
β’ Loss of proper transmission alignment π
β’ Excessive vibration throughout the drivetrain π
β’ Premature wear of the clutch, pilot bearing, and input shaft βοΈ
β’ Damage to the flywheel housing or transmission case π₯
β’ Risk of catastrophic transmission failure if left unrepaired β
π Common symptoms drivers may notice:
β’ Unusual vibration while driving π
β’ Clunking or knocking noises between the engine and transmission π§
β’ Difficulty shifting gears β οΈ
β’ Transmission movement under load π¨
β’ Oil leaks caused by excessive movement π§
π Did you know?
Even a few missing or loose mounting bolts can create a small gap between the transmission and the flywheel housing. That slight movement places tremendous stress on the remaining bolts and drivetrain components, often leading to broken hardware, damaged housings, or expensive transmission repairs.
π‘ Why inspections are so important:
Problems like this often develop gradually and may go unnoticed until major damage occurs. Routine inspections can identify loose or missing hardware before it causes transmission misalignment, saving thousands of dollars in repairs and preventing unexpected downtime.
β
At TAT Express, we perform detailed drivetrain inspections to ensure every critical component is properly secured and aligned. Catching issues early helps protect your truck, reduce repair costs, and keep you safely on the road.
π TAT Express β Dallas, TX
4140 Langdon Rd, Dallas, TX 75241
π 972-225-3017
π https://tatexpressinc.com/
β
Semi-Truck, Trailer & RV Repair Specialists
β
Built on Integrity. Striving for Excellence
π§π Heater Core Hose Clamps Found Leaking During Inspection! ππ§
During a routine cooling system inspection, our technician discovered coolant leaking from the heater core hose clamps. While hose clamps may seem like small components, they play a vital role in keeping the cooling system sealed and maintaining the proper coolant pressure. Even a minor leak can turn into a major repair if left unaddressed. πβ οΈ
π‘ What do heater core hose clamps do?
Heater core hose clamps secure the coolant hoses to the heater core and cooling system fittings, preventing coolant from escaping while the engine is operating under pressure.
β οΈ What can cause hose clamps to leak?
β’ Loose or worn clamps π§
β’ Aging or deteriorated coolant hoses β³
β’ Corrosion around fittings π
β’ Heat cycles causing hoses to shrink or harden π‘οΈ
β’ Vibration from daily truck operation π
π Common symptoms of leaking heater core hose clamps:
β’ Low coolant level π§
β’ Coolant dripping under the truck π¨
β’ Sweet smell of coolant π
β’ Heater not performing as efficiently π₯
β’ Engine running hotter than normal π‘οΈ
π Did you know?
A slow coolant leak from a hose clamp can be easy to overlook because it may only leak when the cooling system is hot and pressurized. Over time, that small leak can lower the coolant level enough to increase the risk of engine overheating.
π‘ Why prompt repairs matter:
Replacing or tightening leaking hose clamps before they fail completely helps maintain cooling system pressure, prevents coolant loss, protects the heater core, and reduces the risk of costly engine damage caused by overheating.
β
At TAT Express, every cooling system inspection is performed with attention to detail. We identify even the smallest coolant leaks to help keep your truck reliable, efficient, and on the road where it belongs.
π TAT Express β Dallas, TX
4140 Langdon Rd, Dallas, TX 75241
π 972-225-3017
π https://tatexpressinc.com/
β
Semi-Truck, Trailer & RV Repair Specialists
β
Built on Integrity. Striving for Excellence
07/20/2026
π§π Worn Carrier Bearing Replaced to Restore a Smooth Driveline! ππ§
During our inspection, our technician found that the carrier bearing was worn out and no longer properly supporting the driveshaft. To restore safe and reliable operation, the worn carrier bearing was replaced before it could lead to more serious driveline damage. βοΈβ
π‘ What is a carrier bearing?
The carrier bearing is a critical component that supports the driveshaft on trucks with a two-piece driveshaft. It helps keep the driveshaft properly aligned while absorbing vibration and allowing smooth power transfer from the transmission to the drive axle.
β οΈ What causes a carrier bearing to wear out?
β’ Normal wear and high mileage β³
β’ Constant driveline vibration π
β’ Torn or deteriorated rubber support π§
β’ Heavy loads and harsh road conditions π£οΈ
β’ Misaligned driveline components βοΈ
π Common symptoms of a worn carrier bearing:
β’ Driveline vibration, especially at highway speeds π³
β’ Clunking or thumping noises when accelerating or shifting π
β’ Squealing or growling sounds from underneath the truck β οΈ
β’ Excessive driveshaft movement π©
β’ Premature wear on other driveline components π
π Did you know?
A failing carrier bearing can place additional stress on the driveshaft, U-joints, and transmission. Replacing it early can help prevent costly driveline repairs and unexpected breakdowns.
π‘ Why this repair matters:
A properly functioning carrier bearing keeps the driveshaft stable, reduces vibration, improves driving comfort, and helps ensure efficient power delivery throughout the drivetrain.
β
At TAT Express, we perform detailed driveline inspections to identify worn components before they become major failures. Our goal is to keep your truck operating safely, smoothly, and reliablyβmile after mile.
π TAT Express β Dallas, TX
4140 Langdon Rd, Dallas, TX 75241
π 972-225-3017
π https://tatexpressinc.com/
β
Semi-Truck, Trailer & RV Repair Specialists
β
Built on Integrity. Striving for Excellence
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Address
4140 Langdon Road
Dallas, TX
75241
Opening Hours
| Monday | 8am - 6pm |
| Tuesday | 8am - 6pm |
| Wednesday | 8am - 6pm |
| Thursday | 8am - 6pm |
| Friday | 8am - 6pm |