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1998 Chevrolet C2500 Cheyenne 5.7L Poor Idle Quality
Posted to GM Driveability on 4/14/2011 8 Replies

This pick up wants to surge at idle and when you take your foot off of the brake, it motors along quite fast whether in reverse or forward. There are no codes. We found that when the engine is cold, it all works well - iac at 190 & slowly goes down to about 10...

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Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C2500 Cheyenne

VIN 1GCGC29RXW
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C2500 Cheyenne

VIN 1GCGC29RXW
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality