Symptom Chart - Transmission Cooling

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 (if equipped)	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. REFER to TRANSMISSION FLUID COOLER TUBES .
	Transmission fluid cooler coolant control valve is sticking	If DTC P26AC is set GO to PINPOINT TEST B . If not, REFER to ENGINE COOLING .
	System leaks	INSPECT transmission fluid cooler and transmission fluid cooler tubes for leaks. SERVICE as required.
	Internal transmission concerns	REFER to AUTOMATIC TRANSAXLE - 6F35 .
Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed	Transmission fluid cooler tubes grounded	CHECK the transmission fluid cooler tubes. REPAIR as necessary. REFER to TRANSMISSION FLUID COOLER TUBES .