Question about 1994 GMC Jimmy

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My 2000 gmc van misfires in rainy weather then clears up.

I replaced the wires, coil, distributer parts also.

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Check the inside of your distributer cap, moisture will cause major problems. Start your jimmy and run water over and around your distributer, after awhile turn it off remove the cap and feel the inside for moisture...it might not be sealing right.

Posted on Jan 16, 2009

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Sometimes if you get lucky you can see spark jumping on the motor by operating the engine in the dark. Mist the engine with a spray bottle of water to see if you can induce a misfire, if unsuccessful with normal weather conditions.

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Please rate my info.

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1 Answer

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