FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Harsh Downshifts

Symptom:
* HARSH DOWNSHIFTS

POSSIBLE CAUSES
L-R CLUTCH OR ACCUMULATOR SEAL LEAKAGE
STICKY THROTTLE POSITION SENSOR
STUCK AIS MOTOR
DEFECTIVE SOLENOID ASSEMBLY
ENGINE COOLANT TEMP TOO LOW
L-R SWITCH VALVE STICKY
UD CLUTCH CLEARANCE TOO LOW

Repair Instructions:
L-R CLUTCH OR ACCUMULATOR SEAL LEAKAGE
Perform Clutch operation tests/ replace Accumulator Seal Rings.
Perform Transaxle 41 TE/AE Verification TEST VER-1A

STICKY THROTTLE POSITION SENSOR
Refer to Symptoms List, THROTTLE POSITION SIGNAL.
Perform Transaxle 41 TE/AE Verification TEST VER-1A

STUCK AIS MOTOR
Refer to Symptoms List under DRIVEABILITY DTCs, and CHECKING THE MINIMUM
IDLE AIR FLOW to repair failure.
Perform Transaxle 41 TE/AE Verification TEST VER- 1A

DEFECTIVE SOLENOID ASSEMBLY
Replace Solenoid Pack.
Perform Transaxle 41 TE/AE Verification TEST VER-1A

ENGINE COOLANT TEMP TOO LOW
Check Coolant System / Thermostat stuck. Also, check for PCM DTC's.
Perform Transaxle 41AE/TE Verification TEST VER-1A

L-R SWITCH VALVE STICKY
Recondition Valve Body.
Perform Transaxle 41 TE/AE Verification TEST VER- 1A

UD CLUTCH CLEARANCE TOO LOW
Replace UD clutch Plates and discs, set clearance to specifications.
Perform Transaxle 41AE/TE Verification TEST VER-1A