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Asked by Mar 20, 2010 at 01:13 PM about the 2002 Pontiac Grand Prix SE

Question type: Maintenance & Repair

I have a 02 grand prix with a random multiple cylinder misfire and i think it may be warped heads or blown gaskets, any ideas

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4,655

I'd check to see if you are getting good fuel flow by make sure there is enough fuel pressure and if it has been a long time since the fuel filter has been replaced, it may not be a bad idea to do so. Then check to make sure the spark plugs are good. Depending how old or the last time the spark plug wires were replaced it may not be a bad idea to consider those also. Hopefully these are simple checks to get you started.

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