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ac problems

  1. 71 El Camino no power to compressor clutch

    Heating & Air Conditioning Systems
    Starting to look at the AC on my 71 (factory AC)... All blower speeds and Vac/doors respond fine. Jumpered the Ambient switch no power on the light blue wire. Jumpered 12V to Compressor, engages fine, compressor is quiet, sight glass shows freon moving. When I put wiring back to normal, the...