I went and purchased a cheap UV light and a couple cans of refrigerant. With the UV light I could see no traces of dye anywhere around the hoses under the hood. I think I saw a slight trace of dye under the cap where you fill the A/C system. I put two cans of refrigerant in there and still saw no traces of dye. The A/C blew cool air for about 3 days before it went back to warm air. I hate to just buy a discharge hose and change it if that is not the real problem but it would still be cheaper than paying someone else to do it. Just don't know how much a shop would charge me to pull a vacuum and fill the system properly (and hope the leak is fixed).