Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
1991
>>
S15/T15 4WD Jimmy V6-262 4.3L
>>
Repair and Diagnosis
>>
Transmission and Drivetrain
>>
Automatic Transmission/Transaxle
>>
Testing and Inspection
>>
Symptom Related Diagnostic Procedures
>>
3L30 (180/180C) Automatic Transmission
>>
No Forced Downshifts
No Forced Downshifts
1. Detent cable broken or improperly adjusted.
2. Stuck detent pressure regulator valve.