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  1. Z

    O2 sensor help (94 k3500)

    Middle pic is definitely the connector that goes to a pressure switch in the back of your AC. Just installed a Sanden upgrade on my 99 burb cause the OEM compressor seized and took out the tensioner pulley along with it. That red connector almost certainly goes to the AC condenser
  2. Z

    Resistor bridging the wires on my AC wiring, fitting burnt

    Am actually dealing with this exact same issue. Thanks!
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