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1990 GMC S15 Jimmy 4.3L Poor Idle Quality
Posted to GM Driveability on 8/20/1998

engine usually starts and idle flares up correctly then moves down to correct speed. Sometimes for extended intervals starts and only goes to base idle. IAC counts are scattered from 80 at start up down to 0 at 1000 rpm.

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Message Closed w/FIX

car Vehicle Data

1990 GMC S15 Jimmy

VIN 1GKCT18Z1L
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursIntermittently
Message Closed w/FIX

car Vehicle Data

1990 GMC S15 Jimmy

VIN 1GKCT18Z1L
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursIntermittently