1979 k10 A/C question

Bigbluechevy

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Joined
Jan 20, 2009
Location
indian trail
I decided to look into my ac system, and I found it has been retrofitted, and full for R134a. The P.O. unhooked/cut the compressor wires at the compressor, and I want to wire it up for the summer. My question is, are any of you running ac on a truck like this?

I am trying to figure out where I need to run the wire coming off the compressor. It is green, and I briefly looked at it and it seems to be a one-wire setup coming off the compressor. Is this just a power wire that gets the signal from the climate control panel? or does this wire come from the fusebox? I would think there should be both a power and signal wire but I am rather confused. I dont see any good wiring diagrams available online that are useful. Thanks, Connor.
 
Get ya a Hanes manual should have the wiring diagrams you need in it
 
I thought about that but havent the time to pick one up lately.

UPDATE: I looked further into it today because as I was posting I was doubting what I saw in the brief moment I looked at the compressor. I found where a connector goes, and where a ground wire has been cut beside it. So I hooked the green wire up to the power side and the ground to the ground side, and still no engagement. I am going to put my test light on it tomorrow morning before I get my first car at work, and see if I have power at the compressor. I checked the whole system under the hood, and I see the pressure switch is hooked up correctly, and all the BMR and other wires seem to be correct.

My next question is, what all is behind the dash relating to the AC wiring?
Could I put the AC on a seperate switch and use the pressure switch to cycle the compressor when I send power to the pressure switch?


I havent a lot of time to take it all apart, and all my tools are at work right now, so everything I use is available before or after I get on the clock.
 
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