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1999 Pontiac Montana 3.4L Misfire
Posted to GM Driveability on 1/15/2010 24 Replies

When engine is revved over 4000rpm(when kicked down) the MIL lamp flashes and code P0300(muliple misfire) results. Not sure if I can feel misfire though. Misfire history indicates only #1 cylinder misfires(1960 total count). Rev limiter cuts in below 4000rpm o...

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  Related Documents & Media  1999 Pontiac Montana

 
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDX03E2X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDX03E2X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load

Trouble Codes

P0300Multiple Misfire Detected