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    jebicriah's Avatar
    jebicriah Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 27, 2009, 04:03 PM
    Jeep wrangler idle issues
    I have a 1998 jeep wrangler I am having an idling problem but only when the car in in drive not park. It idles real erratically up and down. v6 4.0l I changed the throttle position sensor this helped but not perfect. Checked for vaccuum leaks still rough. Runs fine in drive while accelerating
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jun 27, 2009, 04:44 PM

    Clean/replace the Idle Air Control Valve (IACV).
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