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1994 Chevrolet K2500 Suburban 5.7L Poor Idle Quality, Cuts out, Misfire
Posted to GM Driveability on 10/10/2019 29 Replies

Engine has a hard, random miss at idle--more pronounced when in drive. Before replacing the IAC the engine would almost cut out--now the IAC helps keep it alive. I scope tested the distributor and did not find a correlation with the signal (good) and when ...

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car Vehicle Data

1994 Chevrolet K2500 Suburban

VIN 1GCGK26K6R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBD1
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursCold, Hot, Idle
Open Help Request

car Vehicle Data

1994 Chevrolet K2500 Suburban

VIN 1GCGK26K6R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBD1
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursCold, Hot, Idle