Saturday I pulled into a parking lot and heard a squeak followed my a huge hissing noise. Popped the hood to hear the last of the Freon leaving my AC compressor from what I think was just below the pulley. So I have no more cold and that is not acceptable. AC is the ONLY thing I've never fixed on a car. I've put a motor together from a short block before and somehow this whole AC thing is a mystery to me. I know how it works and that there's very very few moving parts, the main one, the compressor I think just died. So I need a new compressor and a way to get a charge back into the system. I called a shop and they said that a leak like that is the compressor and you have to replace the compressor and the evaporator to get the warranty and now it's starting to look like a LOT of money to pay someone to fix it. I want to do this myself, other than ordering a new compressor what do I need to know here.