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Old 04-10-2013, 12:45 PM
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Sporatic idle problems on start up

Have 01 wj with 4.0 82k and have recently had some problems on cold or hot start, runs horrible as if one or more cyls. are not firing. It will eventually smooth out and run normal again with a little feathering of the pedal. May go several cycles with no problems and then bang. No codes thrown.
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Old 04-10-2013, 10:28 PM
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Re: Sporatic idle problems on start up

I would start checking the ignitor plugs and see if there is any strange color or wear on them. Did you see any relation with the problem and high air humidity days?
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