Question about 2006 Chrysler PT Cruiser

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Have a 2006 PT Crusier that rough idle, and check engine light is on with code for #3 cylinder misfire. Replaced spark plugs and wires. Still have engine light on for #3 cylinder misfire. Seems to be fine at higher rpms. 64,000 on car and plugs and wires were also replaced at 60,000. Problem started before the first change of plugs and wires.

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  • philkor Aug 06, 2010

    Codes were cleared, new fuel injector was installed in #3 cylinder. Runs fine at speed.

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I would start by having your codes cleared. If a fouled plug was the culprit, the pcm may not have reconized that it was fixed.

Try running a bottle of sea foam through it. You could have a sticking fuel injector.

As a last resort , have a compression test done. A crack in the clyinder head could also cause this issue.

I hope this gets you started :)

Posted on Aug 06, 2010

  • 2 more comments 
  • Ryan
    Ryan Aug 06, 2010

    Have you tried replacing the coil?

  • philkor Aug 06, 2010

    No.

  • Ryan
    Ryan Aug 06, 2010

    Try that first, if it clears up then great. If not i would have a compression test done.

  • philkor Aug 06, 2010

    Coil was changed with no effect on idle.

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