Question about 2004 Jeep Grand Cherokee

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Corroded contact I read your reply to the 2004 jeep that had problems with the windows going up and down - sometimes. My jeep has just started doing this and I red your response... where are these contacts that may be corroded?? THANKS IN ADVANCE!

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Sorry about the late reply, have been unconnected (local problem) for a week.

I don't recall that particular message but with most of the fuses located under the hood, the chance for corrosion is worse than if inside the passenger compartment and the lead/tin coating on fuse contacts oxidizes anyhow.

Especially with intermittent problems, I start by pulling the suspect fuses and 'wiping' the contacts by plugging and unplugging them several times to somewhat clean the surfaces of them.

I suggest to everyone that they sacrifice ~$20 for a Chilton or Haynes service manual so you can trace wiring if needed and they also contain clues on a variety of problems.

Many of the connectors are pretty well protected with seals that keep splash or spray water out of them but they can corrode anyhow because of the materials used so contact failure due to oxidation is still a problem and often these ghosts leave once the offending connector is plugged and unplugged several times..

Posted on Aug 03, 2008

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