1. ? about idle on 93yj 2.3 manual trans

    when i start my jeep the goes up and stays between 2000 and 3000 rpm, i have replaced the tps and idle speed stepper motor and that hasnt helped

  2. #2

    Re: ? about idle on 93yj 2.3 manual trans

    Huh? 2.3?, Check for a large Vacuum leak on the intake.
    Confucious says: Don't eat the snow where the huskies go!

  3. #3
    Join Date
    Jul 2008
    Location
    Sudbury, Ontario
    Posts
    21

    Re: ? about idle on 93yj 2.3 manual trans

    Had the same problem on my 94 yj with a 2.5......I had just replaced the rings head gasket and manifold gasket. ALL vaccumm lines were fine.....ended up being an air leak in the intake manifold.....not a crack just a slight gap. Stethoscope with open hose found it.

  4. #4

    Re: ? about idle on 93yj 2.3 manual trans

    Air leak is a vacuum leak, doesn't have to be vacuum lines.

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