Thread: 2003 Grand Prix

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  1. #1 2003 Grand Prix 
    LadyRed
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    Default 06-18-2013
    Good afternoon, I just joined the GP forum. Hello to everybody! I have a question. Just recently my car started running hot. I made several attempts adding coolant and now the radiator looks empty again. I added water and that seems to help.(Believe it or not). What could be causing this craziness?
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  2. #2 Re: 2003 Grand Prix 
    blueguy
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    Default 06-18-2013
    LIM gaskets puking into the motor.

    Stop driving it and fix it.

    Probably needs a top end refresh if it's never been done before.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  3. #3 Re: 2003 Grand Prix 
    Below Average Joe
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    Default 06-18-2013
    might as well do the elbows while you are in there too
    Quote Originally Posted by Sven The Sexman View Post
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  4. #4 Re: 2003 Grand Prix 
    LadyRed
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    Default 06-19-2013
    Ok new to the lingo....what is LIM?
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  5. #5 Re: 2003 Grand Prix 
    Travisgt2
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    Default 06-19-2013
    lower intake manifold
    04 GT2: 180 t-stat, cold air intake, reptile tune, plog, hv3, gt1 cam, 90#springs, new push rods, new lifters, port polished heads, lim, uim and tb, 06 Impala brakes and steel brake lines. Cosmetic: black roof rails, under glow, Pontiac ground light, blue hud dic radio controls and cluster. To come custom hood.
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  6. #6 Re: 2003 Grand Prix 
    Travisgt2
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    Default 06-19-2013
    sounds like you might have a blown head gasket can you see it dripping any were and is there and smoke coming out the back
    04 GT2: 180 t-stat, cold air intake, reptile tune, plog, hv3, gt1 cam, 90#springs, new push rods, new lifters, port polished heads, lim, uim and tb, 06 Impala brakes and steel brake lines. Cosmetic: black roof rails, under glow, Pontiac ground light, blue hud dic radio controls and cluster. To come custom hood.
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  7. #7 Re: 2003 Grand Prix 
    LeadfootCJ7
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    Default 06-19-2013
    Do you see water / coolant on the ground when it is parked?
    2007 Grand Prix GXP;2002 Camaro Z28 - tune, CAI, and exhaust
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