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1994 Chevrolet S10 Blazer 4.3L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy
Posted to GM Driveability on 8/3/1999

Engine spark knocks excessively, will only run if accelerator held to about 2200 rpm. Rpms at that time vary 400 to 500 rpms, also speedometer indicates 4 to 5 mph while sitting still and in park. ECM and Prom have been replaced. Customer advanced timing a...

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car Vehicle Data

1994 Chevrolet S10 Blazer

VIN 1GNDT13W4R
Engine4.3 L / 6 cyl
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways
Message Closed w/FIX

car Vehicle Data

1994 Chevrolet S10 Blazer

VIN 1GNDT13W4R
Engine4.3 L / 6 cyl
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways