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1999 Cavalier radiator fan and compressor clutch will not engage on ac circuit.

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There may be a low pressure cut-out switch involved here and that usually comes from being low or out of refrigerant or (freon).
This also happened to me when I sucked up a bag against the return air by the passanger floor under the dash. It also burned up my motor for the a/c.
Hope this can help.
God Bless.
Erik

Posted on Aug 08, 2008

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