Question about 1999 Jeep Cherokee

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99 jeep cherokee xj air conditioning

My son has an a/c that will not work. The pump was replaced when the bearing went out, it has the correct charge but will not run. The back up lights, electric radiator cooling fan, and pollution controls are also experiencing problems. He has replaced the main computer. He thinks this all started about the time the electric fan did not shut off when the jeep was turned off. The fan has not worked since that time.

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The fan relay may have went bad...if the fan doesnt come on the compressor will shut down because of excessive pressure...has he used a test light to check all the fuses under the hood and inside... pay particular attention to fuse 10 in the inside fuse box...if there is no power at all to that fuse it may be in the ignition switch

Posted on Nov 03, 2008

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1 Answer

2000 jeep grand cherokee air conditioning


sounds like the clutch field on or bearing on the front of the compressor went bad take a closer look at the pulley on the comp. and see if there is any debris or melted plastic coming out behind the pulley,if so the clutch,field and bearing should be replaced,hope this helps

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