Question about 1988 Isuzu Trooper 2 Door

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Rrr,rrr,rrr, from 1200 to 1800rpm thats what it does instead of idling normal at 800-900rpm and stalls if its not revved till its hot...

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  • brian_alexan Jul 17, 2009

    my 1995 trooper idles normally but my 1988 trooper 2, 4 door has the jumping 1200-1800 idle problem all the time

    I was told by someone that it is the idle speed control sensor
    how to get one?


  • brian_alexan Jul 17, 2009

    yes

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On first start cold this would be normal the RPM range, but it should come down within a few moments, if I read your post correctly it does come down to normal? if so check for a cold running engine or a poss defective ECT sensor, you will need a scannner to test the ECT signal, also a sticking idle speed control airbypass valve can cause this problem..

Posted on Jul 17, 2009

  • yadayada
    yadayada Jul 17, 2009

    no such part as an idle speed control sensor, am a dealer trained Isuzu tech so sure on this.

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