NewGuy146
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I took the Z to a recommended A/C shop and they couldn't get the A/C to run. They were unable to get the power to the compressor. They tested the compressor and the pressure switch and they tested fine. I've done some digging and believe my A/C system is a dealer/port install. Below is a picture of the system. The A/C is controlled by a knob in the console and the Vent/Heater controls the fan. I believe it is an A.R.A system. Does anyone have a wiring diagram for that type of system or some ideas to try? It's getting hotter day by day and I'm not sure I will survive in a car without A/C
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Ok here is what I found or didn't find. I used a wire and touched the battery with the contact coming from the compressor and it clicked. I then searched for the pressure switch and didn't see anything that was connected to the receiver/dryer. I also followed the wires from the console control through the firewall and found it didn't connect to anything. That was also true about the wire coming from the compressor. It was just dangling there. I checked the fuses in the interior passenger side and also the wire fuses by the battery and they all look good. From what it looks like maybe I don't have a pressure switch.
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I have a 78 280z and I get no power to the A/C compressor when I turn the A/C knob on. The last owner said that it worked but didn't blow very cold air and thought that the system needed charging. Took the car in for service and the mechanic said that he couldn't get the compressor to kick on - no power. Not very familiar with A/C systems thought I would ask for things to look for in trouble shooting this problem. Trying to get this solved before the good ole Southern heat kicks in. Also, does anyone know of a good shop in Birmingham, AL that may be able to help? Thanks!!
