Question about 2005 Buick Rainier

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I have a 2005 Buick Rainier. The A/C unit has a full charge but the compressor won't come on. The relay checked out ok, yet when jumped out the compressor works.

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The ac system has to be reset,removal of the fuse for the ac,will do this,leave it out for about 10 seconds then replace it,removal of the negative battery cable will most likely do it,but,the computer for the vehicle might loose it`s memory if you do this,unless you have had the battery out before,and know that it will not,after reseting the ac system,have the ac gauges put on the car,and see what the readings will tell,there is a problem there somewhere or the ac system would not shut down,the system while not running,it is hard to tell if there is enough freon ,or not,but check it with the gauges to tell for sure what the problem is.

Posted on May 28, 2010


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