Question about 2001 Ford Expedition

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Idles up and down about 500 rpm

It intermittenly idles up and down about 500 rpm when stopped at a redlight, moving slowly in a drive through, and even lately when parked in the driveway in park. my repair shop says his machine does not give him any codes. can you help.

Posted by jwrollsr on

  • Anonymous Aug 08, 2008

    idles up and down about 500 rpm when driven

  • Anonymous Jan 03, 2009

    Have the same problem with my 2001 ford expedition. it usually misfire when stop at the light. my mechanic doesn't have any code to fix it.



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I had the same problem and it turned out to be cylinder one wasn't firing correctly (bad plugs). It could be any cylinder but mine was number one. I replaced the plug and it's fine now.

Posted on Aug 06, 2008


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