Hi I am new to this site so thanks for adding me. I have a 1995 2 Door Tahoe and I am having some AC problems I think it is electrical and it may be at the control unit I have the harder and more expensive one to find. When I push the AC button nothing happens and I had it running last year. I just replaced the plug for the pressure switch because it seemed to have loose wires. It worked only when I moved the wires by hand while the ac was on. I have power to one side of the plug at all times. If it was all working and I pushed the ac button in where should I have power? All fuses are good and the relay has one leg with power at all times is this normal? I have also jumped the pressure switch plug and nothing.

Thanks
Bill