AC compressor cycling

By 99GMCZ71
April 30, 2004 in 1999-2013 Silverado 1500 & Sierra 1500

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99GMCZ71

Posted April 30, 2004

My AC compressor will "cycle" even when the AC button is off. I believe it does it when the heater/AC is set to defrost. I know the old trucks use to do this when the lever was set to defrost. Is this normal for the new style truck?

Norseman

Posted April 30, 2004

Yes, that is normal. The defrost setting uses the A/C to remove humidity from the air.

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