I have a 2005 Kia Sedona, and recently had been using a chain garage to fix this and that on my vehicle. I had some pulley noise a few months ago, and they checked it and adjusted it. Last moth the noise was back, and when they recommended I replace the idler pulley. Immediately after I picked up the car, the a/c was not blowing cold (I live in Florida, so of course I noticed this right away.) I brought it back in, they checked it, and said I probably had a slow leak, and they would charge it with freon and that I was to come back in a few days to check it with a black light. Also, I should run the a/c a lot. Well, it ran cold for a few hours, and was out of freon in less than 24. They put the car up, showed me with a black light a few glowing drops, and said that I needed an $1100 new compressor. I asked him to show me where the pulley was they replaced, and it was right next to the compressor. I had zero problems with it until they made the pulley replacement, and they are trying to get me to believe that it was a slow leak. Like I said, I live in Florida, and use it year round. Besides, if it was a slow leak, why was all the freon gone in a few hours? They are telling me there is no way they could have damaged it, but are now offering to do the work for 50% off.
I appreciate any information offered about this!