Question about 1999 Cadillac DeVille
Replaced battery, AC comes on momentarily, then it switches to heat. No problem at all before battery replacement.
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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Posted on Jan 02, 2017
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