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1999 Chevrolet K2500 Suburban 7.4L Poor Idle Quality, Hesitation, Misfire
Posted to GM Driveability on 9/27/2004 9 Replies

great customer,came in and said he changed his own spark plugs because he had a miss at idle. He asked me to look at it and see what I could make of it. Sounds too simple ? right ? Well #1 cylinder will not fire normal at idle !!, under load or not . I have do...

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Message Closed w/Summary

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 1GNGK26J5X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways
Message Closed w/Summary

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 1GNGK26J5X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways