84 C10 a/c help needed
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84 C10 a/c help needed
I'm trying to wire up the a/c in my 84 w/ a 5.3 from an 07 Silverado. I wanted to reuse the factory low pressure cutoff switch on the dryer. There are two wires coming out of the switch - one + 12v & a second that should complete the circuit and activate the switch. My question is where should that lead be wired to? I was told to connect it to the relay for the a/c comp but I don't know which of the four terminals to connect to. I'd rather wire it into the relay than directly to the compressor as the engine harness is factory and I have a relay center near the ECU (as wired by current performance wiring).