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1993 GMC Jimmy SLE 4.3L Poor Idle Quality, Surge, Misfire
Posted to GM Driveability on 3/17/2006 8 Replies

This Typhoon came in for a rough running complaint. Scope testing ignition did not turn up any problems. scan data stream seems normal except block learn is all over the map as the engine [...] balance test shows at idle #6 cylinder about 65% ,and at 2000 rpm ...

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Message Closed w/Summary

car Vehicle Data

1993 GMC Jimmy SLE

VIN 1GDCT18ZP0
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MFI
EmissionsFed
SymptomsPoor Idle Quality, Surge, Misfire
OccursCruise, Idle
Message Closed w/Summary

car Vehicle Data

1993 GMC Jimmy SLE

VIN 1GDCT18ZP0
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MFI
EmissionsFed
SymptomsPoor Idle Quality, Surge, Misfire
OccursCruise, Idle