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1990 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality
Posted to GM Driveability on 6/18/2002 5 Replies

checked with scope, pattern looks good. High Hydrocarbons at idle and at 2,500 only comes down to about 150. egr good not leaking, timing at 0 tdc. owner put in new a/c delco plugs, they do look a little lean. Its a manual, when you go to take off it feels lik...

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car Vehicle Data

1990 Chevrolet K1500 Cheyenne

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
EmissionsCa.
SymptomsPoor Idle Quality
Message Closed w/FIX

car Vehicle Data

1990 Chevrolet K1500 Cheyenne

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
EmissionsCa.
SymptomsPoor Idle Quality