Inspection and Verification
CAUTION:
When internal wear or damage occurs in the transmission, metal particles and clutch plate material can travel into the torque converter, the fluid cooler tubes, the in-tank transmission fluid cooler and the auxiliary transmission fluid cooler, if equipped. These contaminants are a major cause of recurring transmission concerns. To prevent future concerns, remove these contaminants from the cooling system before placing the transmission back into use. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION - 6HP26
article or AUTOMATIC TRANSMISSION - 6R75
article for fluid cooler flow testing, backflushing and cleaning.
- Visually inspect for obvious signs of mechanical damage, incorrect component installation and system leaks. Repair as necessary.
- Install a new or remanufactured radiator when fluid is found leaking from the in-tank transmission fluid cooler. Refer to ENGINE COOLING article.
- Install a new O-ring when transmission fluid is found leaking between the radiator transmission oil cooler and the transmission oil cooler fitting (not the cooler line into the fitting). Refer to the Component Test .
- Install a new auxiliary transmission fluid cooler if there is leakage from the fluid cooler. Refer to Auxiliary Transmission Fluid Cooler .
- If the fault is not visually evident, go to Symptom Chart - Transmission Cooling or Go to Symptom Chart - Noise, Vibration and Harshness (NVH) .