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1993 GMC Sonoma Question: what would make the A.C compresser frost over when not being used

 

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wgd, 2.8L V6, Murfreesboro, TN, October 30, 2011, 10:35
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it is on a 93 gmc sonoma i am in the the proses of replacing the heater core and was wondering why the A.C compresser was frosted over after driveing but not useing the ac

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  • Answer #1

    dandd October 30, 2011, 18:45
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     Master

    If you are using the defrost, then the A/C compressor is still working. Are you using defrost at all?

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