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1994 Chevrolet C3500 Cheyenne 7.4L Poor Idle Quality, Hesitation, Cuts out, Misfire, Backfiring
Posted to GM Driveability on 3/12/2001

This big tank was brought to me by another shop who just installed a Reman engine after the first one melted down.

Engine runs just wonderful when you put the system into ignition bypass to set the timing. But start it up in normal mode and it barely runs. Un...

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car Vehicle Data

1994 Chevrolet C3500 Cheyenne

VIN 1GCHC33N7R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Cuts Out, Misfire, Backfiring
OccursAlways
Misc.Crew Cab, Duel Rear
Message Closed w/FIX

car Vehicle Data

1994 Chevrolet C3500 Cheyenne

VIN 1GCHC33N7R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Cuts Out, Misfire, Backfiring
OccursAlways
Misc.Crew Cab, Duel Rear