Question about 1999 Cadillac DeVille

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2005 Silverado AC quit after battery replacement

Replaced battery, AC comes on momentarily, then it switches to heat. No problem at all before battery replacement.

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Turn ac/heat system off cut car off remove keys/disconect negative cable from battery for 20 seconds and reatach and start car and let run for 30 seconds try air conditioner

Posted on Jun 30, 2009

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