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2008 Pontiac Grand Prix 3.8L Misfire
Posted to GM Driveability on 2/18/2015 18 Replies

Vehicle was towed in for a no start problem. I replaced the ignition module and it ran great. The customer soon after complained of intermittent misfires when on the freeway going over 75mph. He said if he keeps it under 75, it runs great and never a miss or c...

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  Related Documents & Media  2008 Pontiac Grand Prix

 
Message Closed w/FIX

car Vehicle Data

2008 Pontiac Grand Prix

VIN 2G2WP55228
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCruise

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2008 Pontiac Grand Prix

VIN 2G2WP55228
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCruise

Trouble Codes

P0300Multiple Misfire Detected