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1991 Chevrolet Topkick 427CID Poor Idle Quality, Hesitation, Stall
Posted to GM Driveability on 7/27/2005 7 Replies

Hello techs, I have this Topkick in my shop which came in with fire damage at the passenger side of the TBI. As GM was unable to supply a new harness, I ordered and installed new plug ins for the EGR, TPS, IAC, Temp sensor and OP sensor. These units were all r...

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car Vehicle Data

1991 Chevrolet Topkick

VIN 1GD57HAM3M
Engine427 / 8 cyl
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality, Hesitation, Stall
OccursAlways
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Topkick

VIN 1GD57HAM3M
Engine427 / 8 cyl
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality, Hesitation, Stall
OccursAlways