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1991 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality
Posted to GM Driveability on 3/21/2007 19 Replies

This truck came in for a high idle. I found the throttle body gasket bad and replaced it. The idle lowerd but still at 1000 RPM. I checked the TPS it's at .60 volts. The IAC is th 35 at idle. I checked for vacum leakes none found. If anyone has any Ideas I wou...

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  Related Documents & Media  1991 Chevrolet K1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet K1500 Cheyenne

VIN 2GCEK19K5M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursAlways
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet K1500 Cheyenne

VIN 2GCEK19K5M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursAlways