Component
POWER TRAIN:AUTOMATIC TRANSMISSION
Manufacturer
GENERAL MOTORS CORP.
What Happened
There's a potential problem with the automatic transmission fluid cooler hoses in your medium duty truck. These hoses can degrade over time and cause transmission fluid to leak onto the exhaust system.
Risk if Unfixed
If this happens, it could lead to a fire in your vehicle.
Free Fix
Don't worry, this is a free fix! Our dealership will replace the transmission fluid cooler hoses with new ones that are designed to withstand heat, and also inspect the exhaust manifold seal for any leaks and replace it if needed.
Show original NHTSA language
Original — What Happened
VEHICLE DESCRIPTION: MEDIUM DUTY TRUCKS. THE TRANSMISSION FLUID COULD LEAK FROM A HEAT DEGRADED TRANSMISSION FLUID COOLER HOSE ONTO THE EXHAUST SYSTEM ON THE PASSENGER'S SIDE OF THE VEHICLE.
Original — Risk if Unfixed
THIS CONDITION COULD RESULT IN A FIRE.
Original — Remedy
DEALERS WILL INSTALL A NEW TRANSMISSION FLUID COOLER INLET HOSE AND OUTLET HOSE DESIGNED WITH A HEAT SLEEVE AND ENSURE ADEQUATE CLEARANCE TO THE EXHAUST SYSTEM TAKE-DOWN PIPE. DEALERS WILL ALSO INSPECT THE RIGHT-HAND EXHAUST MANIFOLD SEAL FOR LEAKAGE, AND REPLACE IF NECESSARY.
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Repairs are free at any authorized dealer. Find a dealer →