Pontiac Grand Prix Engine Misfire

Browse Pontiac Grand Prix Engine Misfire questions and answers. Choose a question that matches your symptoms.

27 discussions

Engine Misfiring, Code P300

2008 PONTIAC GRAND PRIX
Yes, Had A Misfire. One Coil Pack Was Not Firing Replaced It And It's Still Misfiring Scan Code P300.
1 ANSWER
2 IMAGES
Asked by Tanna Johnson

Hesitation Issue, Car Running Poorly P0300, Random...

2008 PONTIAC GRAND PRIX
Hesitation Problem At 2500-3000 Rpm Cannot Get Much Higher Than That When Driving, Gas Mileage Has Dropped. I Have Just Replaced The Spark...
58 ANSWERS
Asked by Bikerman002

Plug Misfiring Cannot Find No.5 Cyl.

2008 PONTIAC GRAND PRIX
2008 Pont.v8 Where Is No.5 Cyl
1 ANSWER
Asked by 1blossom

2007 Pontiac Grand Prix A Jerk That Feels Like A...

2007 PONTIAC GRAND PRIX
Shakes Or Wobbles Problem 2007 Pontiac Grand Prix 6 Cyl Automatic 82000 Miles My Car Jerks So Hard It Feels As If Someone Has Hit Me...
1 ANSWER
Asked by 7shel7

Bad Misfire

2006 PONTIAC GRAND PRIX
Have Changed The Egr Valve And Plugs And Wires. Still Having The Same Problem. Codes Were Read And It Came Back For A Mass Air Flow Sensor?...
1 ANSWER
2 IMAGES
Asked by Ninaguerra23

Car Struggles Driving Uphill?

2005 PONTIAC GRAND PRIX
The Car Starts To Hesitate/struggle When Going Uphill To The Point Where It Turns The Cruise Control Off And Flashes The Cel It'll Also...
8 ANSWERS
2 IMAGES
Asked by Jr47

Power Steering And Random Misfiring Of Engine

2005 PONTIAC GRAND PRIX
So I Was Driving My Car Today And The Power Steering Went Out. So I Went And Bought Some Power Steering Fluid, But It Still Doesn't Work...
1 ANSWER
11 IMAGES
Asked by munyman26

While Driving The Engine Lost Power And The RPMs...

2003 PONTIAC GRAND PRIX
When I Was Driving The Other Day, My Car Started To Lose Power Like It Wasn’t Getting Speed, And The Rpms Would Just Rev Up And I Had A...
1 ANSWER
Asked by Kennedylane03

Misfire Or Cutout Under A Load

2003 PONTIAC GRAND PRIX
I Have A 2003 Grand Prix Gtp With 116,000 Miles Runs Great Under Normal Conditions! When You Put It Under A Load {i.e. Heavy Boost, Passing...
1 ANSWER
Asked by qman77

Engine Missing On Startup?

2002 PONTIAC GRAND PRIX
For The Last Couple Weeks When I Start Up And Take Off Cold, My Car Misses For A Few Then Stops. There's No Check Engine Light On So I...
4 ANSWERS
13 IMAGES
Asked by settergrenh

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BackfireBurning OilCompressionCoolant In OilDamagedGasHard to StartHesitateIdle ErraticIdle HighIdle LowIdle RoughKnockLeanLocked UpLow PowerMisfireNoiseNot Cranking OverNot RunningOil LeakOverheatPingPoor MileageRattleRevs UpRoarRuns HotRuns RoughShakesSmellSputterSquealStall While DrivingStall at IdleSteamSurgeTickVacuum LeakVibrationWhine

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