Harsh Downshifts

SYMPTOM:
HARSH DOWNSHIFTS

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

Repair Instructions:
ENGINE COOLANT TEMPERATURE STAYS LOW TOO LONG
Check Coolant System / Thermostat stuck. Also, check for PCM DTC's.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
L-R CLUTCH OR ACCUMULATOR SEAL LEAKAGE
Perform Clutch operation tests/ replace Accumulator Seal Rings.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
STICKY THROTTLE POSITION SENSOR
Refer to Symptoms List, THROTTLE POSITION SIGNAL.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
STUCK IAC MOTOR
Refer to Symptoms List under DRIVEABILITY DTCs, and CHECKING IAC MOTOR to repair failure. Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
DEFECTIVE SOLENOID ASSEMBLY
Replace Solenoid Pack Assembly.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
GEAR LASH DOWNSHIFTS - Continued
L-R SWITCH VALVE STICKY
Recondition Valve Body.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
UD CLUTCH CLEARANCE TOO LOW
Replace UD clutch Plates and discs, set clearance to specifications.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System