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there is a low pressure switch located on the evaporation can. Its not important to find this, just know that its there, because most of the time, its a simple case of being a little low on freon. If you are a couple of pounds low, the pressure switch picks up on this, and wont allow the compressor to engage as to prevent damage. i have lost a pund or so over time, and topped it off with a recharge kit from the auto parts store (30 bucks) and never had another problem. But, it could be a major leak, or just a simple fuse. Look at the obvious first!

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โˆ™ 2007-02-11 15:40:11
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Q: Why doesn't the air compressor clutch engage on 1995 GMC Jimmy?
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