I noticed a very light wet spot after driving my car one day and I knew it wasn't the a/c. It was passenger side toward the front. I have already checked the the resevior and hoses and there are no obvious leaks. The engine doesn't look gunky or wet. I think my car is dying on me. Another thing I think may be wrong besides the leak is the alternator. If your alternator is going bad it will drain your battery correct? I know there is a test you can do at home to determine battery or alternator, but I can't remember what it is??? I think is was disconnect one of the cables?