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1996 Buick Roadmaster Collector's Edition 5.7L Poor Idle Quality, Misfire
Posted to GM Driveability on 8/30/2012 22 Replies

Optispark nightmare. Vehicle has slight misfire at idle and with RPMs raised. Not noticable when driving and under acceleration. Data stream shows intermittent misfire counts on all cylinders randomly. Never sets any DTCs. Misfire can be felt in steering wheel...

22 Replies Received (View Replies)

  Related Documents & Media  1996 Buick Roadmaster Collector's Edition

 
Message Closed w/Summary

car Vehicle Data

1996 Buick Roadmaster Collector's Edition

VIN 1G4BN52P3T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways, on Accel, Idle
Message Closed w/Summary

car Vehicle Data

1996 Buick Roadmaster Collector's Edition

VIN 1G4BN52P3T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways, on Accel, Idle