ok, here's what is/was happening. i refilled my ac with refrigerant and it blew cold air just fine. the only problem was that it was really noisy. it was not the clicking on and off of the compressor, it was like a constant knocking/clicking sound as soon as i turned the ac on, then went away with it off.(it was not the compressor going on and off, trust me) so my ac didnt seem as cold and there were air bubbles in the viewing window so i added another can. the compressor seemed to run smoother for a while. the next time i went to the car and turned the ac on, nothing. the compressor wont come on at all. it is still full of refrigerant but the compressor will not come on. i also grabbed a can of oil tonight, but the compressor doesnt come on so i cant even get that into the system. did my compressor completely die? any one else had this problem...any help would be awesome, i dont really want to start summer with no ac. thanks in advance.