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1991 Chevrolet C1500 Cheyenne 5.0L Idles fast sometimes
Posted to GM Driveability on 11/17/2000

I could sure use a little help. This pick-up runs fine until the engine won't idle down. This mostly occures after a hot soak but sometimes will happen during a drive after the engine is hot. The ISC count is between 30 and 83 when this happens depending on ho...

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Message Closed w/Summary

car Vehicle Data

1991 Chevrolet C1500 Cheyenne

VIN 1GCEC14H6M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryFI / TBI
EmissionsUS Fed
SymptomsIdles Fast Sometimes
OccursHot, Cruise, Idle, After a Hot Soak, Intermittently
Message Closed w/Summary

car Vehicle Data

1991 Chevrolet C1500 Cheyenne

VIN 1GCEC14H6M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryFI / TBI
EmissionsUS Fed
SymptomsIdles Fast Sometimes
OccursHot, Cruise, Idle, After a Hot Soak, Intermittently