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1991 Chevrolet S10 2.5L Poor Idle Quality, Hesitation, Misfire
Posted to GM Driveability on 11/13/1998 1 Reply

The original complaint was fast idle and mising at accel. Inspected secondary wires, they look good. Inspected spark plugs, cleaned & installed. They were carboned. Inspected IAC, was not plugged & seamed to seat. I am missing something, please point me in the...

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car Vehicle Data

1991 Chevrolet S10

VIN 1GCCS14E4M
Engine2.5 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursOn Accel, Idle
Misc.Tech 4
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet S10

VIN 1GCCS14E4M
Engine2.5 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursOn Accel, Idle
Misc.Tech 4