My 93 SI, doesnt blow cold air. Its been like that since i got it about two months ago. It uses r12, i will get the refrigerant recharged but how can i tell if its the compressor that is not working? I know their is a dye u can get at autoparts stores that shows where their are leaks but how can u tell if it is the compressor that is not working?

 

i meant R134a