what causes the ac compressor to stay kicked on even when inside vehicle is turned off

2007 JEEP PATRIOT
74,000 MILES
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CLGWD12
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ac not turned on but compressor still kicks in. there is a knocking noise like something falling apart. temperature stays in middle all time.
Sep 13, 2012 at 2:32 PM
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HMAC300
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your clutch may have siezed for the a/c have a pro check it out.
Sep 13, 2012 at 3:36 PM