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Thread: 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

  1. #1
    onkatt
    Guest onkatt's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    pulled car to the end of the drive way and it died tried to start it again,
    it started for about 2 seconds and died again. we replaced the fuel pump,
    fuel preasure regulator and the fuel pump and $400.00 later it still wont
    start. the psi reading is supposed to be 48-55 and it is till we start the
    car then it drops to 25 then slowly drops to 18 where it dies. we are at
    our wits end someone please help!

  2. #2
    Tom S.
    Guest Tom S.'s Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    On Mon, 02 Jan 2006 00:41:58 -0500, "onkatt" <onkatt69..........m>
    wrote:

    >pulled car to the end of the drive way and it died tried to start it again,
    >it started for about 2 seconds and died again. we replaced the fuel pump,
    >fuel preasure regulator and the fuel pump and $400.00 later it still wont
    >start. the psi reading is supposed to be 48-55 and it is till we start the
    >car then it drops to 25 then slowly drops to 18 where it dies. we are at
    >our wits end someone please help!


    Possibly a clogged or constricted fuel line between the tank and the
    pump or the pickup in the tank. Somewhere downstream of your pressure
    gauge. While the car is sitting, the pump is able to build up
    adequate pressure, but, once the engine is started, it can't push/pull
    fuel through the system fast enough to keep up the pressure.

    Tom S.

  3. #3
    Paul
    Guest  Paul 's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    >
    > pulled car to the end of the drive way and it died tried to start it again,
    > it started for about 2 seconds and died again. we replaced the fuel pump,
    > fuel preasure regulator and the fuel pump and $400.00 later it still wont
    > start. the psi reading is supposed to be 48-55 and it is till we start the
    > car then it drops to 25 then slowly drops to 18 where it dies. we are at
    > our wits end someone please help!


    Assuming both filters are new, I'd ohm out the pump ground wire.

  4. #4
    M.C. Tee
    Guest M.C. Tee's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    sounds more like the theftlock

    "onkatt" <onkatt69..........m> wrote in message
    news:6be47298329c12d05b83a917bd419413@localhost.ta lkaboutautos.com...
    > pulled car to the end of the drive way and it died tried to start it
    > again,
    > it started for about 2 seconds and died again. we replaced the fuel pump,
    > fuel preasure regulator and the fuel pump and $400.00 later it still wont
    > start. the psi reading is supposed to be 48-55 and it is till we start the
    > car then it drops to 25 then slowly drops to 18 where it dies. we are at
    > our wits end someone please help!
    >

  5. #5
    stacey451
    Guest stacey451's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    I have a problem very much like this. It is with a 96 grand am 2.4 twin
    cam. will crank and run for about 2to3 seconds then dies if you turn the
    key ll the way off and recrank it does the ame thing. How do you reset the
    theftlock system.

  6. #6
    burbur
    Guest burbur's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    > pulled car to the end of the drive way and it died tried to start it
    > again,
    > it started for about 2 seconds and died again. we replaced the fuel pump,
    > fuel preasure regulator and the fuel pump and $400.00 later it still wont
    > start. the psi reading is supposed to be 48-55 and it is till we start the
    > car then it drops to 25 then slowly drops to 18 where it dies. we are at
    > our wits end someone please help!


    While it doesn't happen very often be sure to checked for a blocked exhaust.
    Just have someone at the exhaust when the car starts and make sure something
    is coming out. Had a much older Ford with similar symptoms with a totally
    blocked catalytic converter.

  7. #7
    M.C. Tee
    Guest M.C. Tee's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    most gm's its turn the key to the on position (not start) for 600 seconds
    (10 mins)

    "stacey451" <steinhauer451@...........m> wrote in message
    news:c7b8794b3ee09a0d86768aad11a78494@localhost.ta lkaboutautos.com...
    >I have a problem very much like this. It is with a 96 grand am 2.4 twin
    > cam. will crank and run for about 2to3 seconds then dies if you turn the
    > key ll the way off and recrank it does the ame thing. How do you reset the
    > theftlock system.
    >

  8. #8
    jdtech1
    Guest jdtech1's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    I searched the archives and found a listing on 2005-july-05 under 2000 GTP
    runs 5 seconds then die tells you where the resistor is and how to fix.
    pulled mine off it was bad did ohms test on it and keep getting random
    values so siver surfer is right. Thanks everyone I will pick one up
    tommorrow

  9. #9
    stacey451
    Guest stacey451's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    BINGO! Right on MC. your solution was the fix I needed. Thank you Thank
    you. turned the key to on and waited 10 min then tried cranking it and it
    started right up and kept running. thanks a million!

  10. #10
    M.C. Tee
    Guest M.C. Tee's Avatar

    Default 1999 Pontiac Grand Prix gtp 3.8 won't stay running HELP

    n/p

    "stacey451" <steinhauer451@...........m> wrote in message
    news:f7574d78272eb6afd50ec7a2248e3212@localhost.ta lkaboutautos.com...
    > BINGO! Right on MC. your solution was the fix I needed. Thank you Thank
    > you. turned the key to on and waited 10 min then tried cranking it and it
    > started right up and kept running. thanks a million!
    >

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