Thread: Car Starts and Stalls

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  1. #1 Car Starts and Stalls 
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    Heres the deal.....

    Driving down the road and my car is running mildly hot at this time guage just over a quarter.. All of the sudden the engine starts stuttering like crazy then it stops then it comes back and so on and so on and eventually stalls to where there is no restart. I let it cool down and it fires up but when i try to pull away it stalls and will hesitate or missfire from 2500 to 4000 rpm.

    So thinking its the CPS I replace that but to no avail ....The car seems to run better but when i get to 3000 rpm it just drops out and stalls and most of the time when I start it and let it idle it stalls after 10 secs.

    Heres whats new

    CPS sensor
    LIM & UIM Gaskets
    Plugs & Wires
    MAF Sensor
    TB Gasket

    Its getting gas because when i push down on the pin on the fuel rail gas shoots out

    Its getting spark cause it runs but like shyte
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  2. #2 Re: Car Starts and Stalls 
    SE Level Member Skeeve's Avatar
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    Throttle position sensor maybe?
    99 Grand Prix GT
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  3. #3 Re: Car Starts and Stalls 
    The Blue One blueguy's Avatar
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    Sounds to me like fouled coils or the ICM (bracket the coils sit on) could be bad.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  4. #4 Re: Car Starts and Stalls 
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    Not doubting you blue but if im getting spark at each plug wouldnt that mean the ICM and Coils should be fine?? Also whenever I rev up to the point where the SC kicks in it bogs out and the SC makes a funny noise like it loses power or something
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  5. #5 Re: Car Starts and Stalls 
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    UPDATE!!!! Was the fuel pump
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  6. #6 Re: Car Starts and Stalls 
    GrandPrix Junkie CTKGP09's Avatar
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    good to know you found the problem, now enjoy the GP again
    '04 Chevy Silverado LT 4x4 - intake, headers, full exhaust, zo6 cam, 799 heads, tune, leveled, 33's
    '00 Grand Prix GTP DAYTONA 500 - L36 block, S1X, intercooled, GenV, N*, headers, full exhaust, coilovers, 5 speed swap, stage 3+ clutch
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