Thread: ***2004 Grand prix GT Problem starting***

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  1. #1 ***2004 Grand prix GT Problem starting*** 
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    Hi guys, I have a 2004 Pontiac grand prix gt. the problem I have is when the car is cold it starts right up no problms. But I let it run, shut it off and try again it will start for a few seconds and sputter stall out unless I apply a little gas with the peddle then it will stay running. Please help!!
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  2. #2 Re: ***2004 Grand prix GT Problem starting*** 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Clean the throttle body and MAF sensor, see if it gets better.

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  3. #3 Re: ***2004 Grand prix GT Problem starting*** 
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    I changed the MAF, MAP Sensor and EGR Valve
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  4. #4 Re: ***2004 Grand prix GT Problem starting*** 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Okay, but did you ever clean the throttle body?

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  5. #5 Re: ***2004 Grand prix GT Problem starting*** 
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    yes
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  6. #6 Re: ***2004 Grand prix GT Problem starting*** 
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    what else can it be
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  7. #7 Re: ***2004 Grand prix GT Problem starting*** 
    GrandPrix Junkie spazzz's Avatar
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    My 2004 had the same kind of sporadic problem. Since I cleaned the TB and MAF I haven't had any problems.
    Did you take the TB off to clean it?
    You might want to clean it again.
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  8. #8 Re: ***2004 Grand prix GT Problem starting*** 
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    yes with the cleaner I did it
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  9. #9 Re: ***2004 Grand prix GT Problem starting*** 
    GT Level Member primem's Avatar
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    fpr or injector leak down can create this symptom. to test, put a fuel gauge on the Schrader valve and prime the fuel system. watch for a pressure drop.
    2004 comp g
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