ac compressor pressure switch

  1. S

    A/C compressor not engaging

    I have a 1997 Silverado that has a new compressor and accumulator that I just finished installing. The low and high side switches have no power going to them, jumping them does nothing. I can hear the relay clicking on, I even put a relay in without a cover and watched it (the relay) engage. I...
  2. J

    AC compressor pressure switch, single pin?

    1990 K2500 7200 5.7 4x4 I decided to replace and fix my AC. I replaced everything. Condenser, evaporator, dryer, orifice tube, and the compressor. I had replaced the lines 5 years ago, so they still were good. The compressor I got: FOUR SEASONS 57237...

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