My AC is not coming out cold...because the compressor is not engaging. I have had this problem before.
Last year I took the car to have a tail pipe hardness welded. As I drove home I stopped by a friends house for a visit...Then I noticed that my ALT gauge was getting weak, so I went straight home. I exchanged the ALT (have an extra) and the problem didn't go away. The next day I was going to the auto parts store and it was raining. I had the AC to try and defrost the wind shield and all of a sudden the compressor engaged and the AC started to kick-out cold. The ALT gauge went back to normal and was glad because I had cold air.
Now here'* what I think happened: Because they grounded the welding machine onto the car frame this caused a problem to the compressor (hence low ALT reading) which then caused it to engage allowing the pulley to work correctly. It'* wierd, but I ended up with cold air.
I have noticed in some forums that state: hotwiring the high press cutout switch (close the circuit) How would I do that, and is that the electrical plug located on the compressor
Does anyone know any other tricks that might help to kick start the compressor, please reply with details. Would tapping the compressor with a hammer (like the starter when not engaging work)
Please help, thanks