No the a/c has never worked since I've owned it.

Nobody to my knowledge has worked on the system.

Yes, I realized the jumper was not a good idea. Yes I know I did it twice.

The belt did not squeal, it's more like a chatter/ rattle.

Yes I own a Multimeter.

What's up everyone. I'm Justin I just bought a 2010 galant 2.4. The a/c is not working, the green a/c light and the high speed fan come on when I turned the knob. I jumped compressor relay and it made an awful noise then I noticed the high speed fan and light does not come on anymore. Compressor rel...