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Posted on May 04, 2009
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Jeep Wrangler 6 cyl. idles up and down

1990 Jeep Wrangler with a carberated 6 cylinder idels up and down.

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  • Expert 108 Answers
  • Posted on May 04, 2009
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Joined: May 04, 2009
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Have your oxygen sensor checked, one of the symptoms of a faulty oxygen is an up and down idle.

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