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1999 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on
Posted to GM Driveability on 8/30/2005 12 Replies

hey guys, this car has come into the shop with a dead #6 cylinder & random misfire code. other cylinders are also misfiring as well. we have checked spark, fuel,egr,injectores have been removed & flow tested ok. cooling system also found to have a rusty sludge...

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  Related Documents & Media  1999 Pontiac Grand Prix GTP

 
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Grand Prix GTP

VIN 1G2WR5211X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI WITH SUPERCHARGER
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, Under Load, on Accel, Idle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Grand Prix GTP

VIN 1G2WR5211X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI WITH SUPERCHARGER
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, Under Load, on Accel, Idle

Trouble Codes

P0300Multiple Misfire Detected