I did not see anything specific to diagnosing A/C problems so I thought I would post one here. 2004 XLS. Last year I discovered a terrible leak around my compressor and replaced it and the dryer. I pulled a vacuum for at least an hour, maybe 2(i can't remember). Then refilled and had cold air for a little while. I don't know if the system stopped working over time or if it stopped all at once over the summer because around the same time the control for my blend door stopped functioning and all i was getting was hot air. I had re-checked the system pressure at the end of the summer last year and it was still good. However, I noticed that my low-pressure lines were not cold which was leading me to believe that maybe my orifice tube was clogged which meant that maybe my accumulator/dryer went bad? I just wanted to see if anyone had any advice before I got the system emptied so I could work on it. Please if anyone has any advice I look forward to hearing it, and if there is a thread I missed to read up on or this should have been posted elsewhere let me know and I will correct.