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2008 Kia Sorento Question: AC unit knocks and rattles when turned on

 

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lisapride, Chandler, AZ, September 09, 2009, 09:21
 Rookie

when I turn on A/C my car makes a horrible rattling and knocking. Sometimes it cranks rough as well and when it does that it runs rough for the first minutes

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  • Answer #1

    January 19, 2010, 13:51
     Master

    Sounds like the AC compressor clutch is failing, how does it run with the AC off?

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