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1993 Chevrolet Suburban 2500 Question: A/C compressor will not engage. Where is the relay? Fuse is good.

 

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Jaws L., 7.4L V8, Clearfield, UT, May 29, 2012, 18:19
 Rookie

With the A/C selected on HVAC panel. The HVAC blows warm air. The A/C compressor clutch does not engage. Has R-12. What else can I do asa backyard mechanic?

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  • Answer #1

    Greg's Orange Auto (12997 Answers) , Orange, CA - (714) 361-9386
    globalhelper May 29, 2012, 19:52
     Master

    ck your a/c relay under hood and then ck pressures on freon charge.with a/c turned on ck pwr to cutch assm if no pwr there jump a/c cycling switch at pigtail. if a/c comes on possibly low freon or bad switch

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