1976 CADILLAC MIRAGE VIR AC SYSTEM

[Mirage]

I have a 1976 Cadillac Mirage. I am working on the ac system. I have rebuilt the VIR receiver, put on a new compressor, flushed all the lines, condenser and evaporater. I then evacuated the system (no leaks) and charged the system with 134a. As long as I have a jumper on the compressor tha ac works and is cold. Hoping the compressor not staying on was the relay, I replaced it with no luck. I don't know what to do next. Through my research, I think I've learned this system with the POA in the VIR, the compressor runs constantly when in AC mode. If I can't find a solution to this problem, I was thinking of putting a switch in the cabin to energize the compressor when I want AC. Anybody see any drawbacks to this solution? Any other suggestions to help me get the AC working would be greatly appreciated.

[bohica2xo]

Sounds like an electrical problem. Sometimes there is more than one "gate" from the dash switch to the compressor.

I would recommend getting the OEM wiring diagrams from Mitchell. You can buy a one month subscription to the factory service manual.

Link below

https://autoacforum.com/viewtopic.php?f=3&t=13817