Question about 1992 Geo Tracker

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When i start my 92 geo tracker, it starts fine but about 5 seconds later, the idle drops significantly. enough so, that the car sometimes (usually) stalls and i have to restart it. it also stalls occasionally when slowing down to stop and i have to restart it... help

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  • katnpatncat Apr 14, 2009

    I am having the same problem.

    It has been in the shop for 4 weeks with no resolution.

    If you come up with one let me know.

    Thanks.

  • Anonymous Mar 17, 2014

    1993 geo tracker stalls after it is warm and will not restart till cold

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  • 137 Answers

This is cause because the ISC is busted or can not open enough to keep idle at 800 rpm.

ISC , idle speed controller

but....
the car has a TPS switch on the throttle body.
if it fails to close at idle the ecu will never attempt to set idle.

or
car could be flooding. (too much gas)

you did not say if motor is 8valve or 16v and they are quite different EFI systems.


Posted on Apr 30, 2009

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