Symptom Chart - Transmission Cooling

Condition	Possible Sources	Action
Transmission overheating	Clogged transmission fluid cooler or transmission fluid cooler tubes Bent or crushed transmission fluid cooler tubes Transmission fluid cooler thermal bypass valve stuck closed	INSPECT the transmission fluid cooler, transmission fluid cooler tubes and transmission fluid cooler thermal bypass valve for damage or plugging. INSTALL new components as necessary.
System leaks		INSPECT transmission fluid cooler and transmission fluid cooler tubes for leaks. SERVICE as required.
Internal transmission concerns		REFER to Automatic Transmission 6F50 6F55 .