Question about 1989 GMC Suburban

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89 GMC Suburban. It dies after idling for 2-3 min

89 GMC Suburban. It dies after idling for 2-3 min and will not immediately restart without the assistance of some starter fluid. if it sits for a long enough while, it's a 50/50 chance on it starting up. i have recently replaced the fuel pump, fuel filter, the two injector pigtails, ignition module, ECM and had the throttle body rebuilt.

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  • trur6rider May 05, 2010

    I am not familiar with an ignition pickup. where is that located and is it possible to test it?

  • trur6rider May 06, 2010

    i checked for codes and none came up. i grounded out terminal's A & B on the ALDL and waited for any codes to pop up. it only kept repeating the standby code 12 which means nothing. one flash, long pause, two quick flashes.

  • trur6rider May 06, 2010

    i checked for codes and none came up. i grounded out terminal's A & B on the ALDL and waited for any codes to pop up. it only kept repeating the standby code 12 which means nothing. one flash, long pause, two quick flashes.

  • yadayada
    yadayada May 11, 2010

    it will leave a code, have you checked the codes in the computer?

  • yadayada
    yadayada May 11, 2010

    sounds like a igintion pickup problem, has it been replaced.

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  • 395 Answers

Try the fuel pressure regualtor

Posted on May 06, 2010

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