air conditioning problems
I think I've overcharged my a.c. system.
About two months ago I charged it with a do it yourself can from an auto parts place. Large blue can don't remember brand. Once on highway cooled great. But in slow downtown traffic didn't cool well. So today I decided to put more freon in to see if that would help. Nope, now it's not cooling at all and my compressor is making a strange sound. What can I do to fix it? I don't want to damage anything, so I won't run it anymore. What would be the proper way to discharge some of the freon?
94 4.0 ranger