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1991 Chevrolet C1500 Cheyenne 4.3L Poor Idle Quality, Stall
Posted to GM Driveability on 3/30/2006 18 Replies

The truck runs well, idles smoothly in park, but will not idle in gear. Scan tool shows IAC counts drop when shifter moves from park position. IAC counts 27 at idle in park, but slowly drop when PRNDL switch moves. Does not require trans gear engagement to ach...

18 Replies Received (View Replies)

  Related Documents & Media  1991 Chevrolet C1500 Cheyenne

 
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car Vehicle Data

1991 Chevrolet C1500 Cheyenne

VIN 1GCEC14Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Stall
OccursIn Gear
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet C1500 Cheyenne

VIN 1GCEC14Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Stall
OccursIn Gear