Question about 1999 GMC Jimmy

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Hessitation when damp outside

It will hessitate till it warms up on damp days almost like a cylinder is not fireing. replaced coil pack

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Look for the distributor cap. Take it off and dry it out. See why its getting moisture in there. Maybe not bolted down properly or could have a crack in it. Good luck.

Posted on Mar 20, 2009


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