I swapped my 3.0 for a VW TDI that has been running great for the last 2500 miles but it is time to get the AC running. I connected the lines and it holds a vacuum just fine. My issue is with the wiring. I left all of the non engine wiring in the truck but the wire that went to the AC magnetic clutch was removed. Can I just wire a switch directly to the AC compressor and run it or does it need to be controlled by the pressure switch? I did hot wire the compressor and it made cold air so the system works but I dont know enough about it to know how it should be working and if just adding power to the compressor will end up causing problems with overpressure or heat.
Matt
Matt