So we were on our way home from San Diego to Phoenix (long hot drive) when the air started acting funny. It started by getting warmer until there was no cool air at all. We hit border patrol and tried the air again, this time working, but I noticed a sort of screaching sound every time you stepped on the brakes. So we turned it off until we got past border patrol. We turned it back on and no problems. The rest of the way home it would work intermittently. Although working most of the time. We took it to a Honda specialist the next day thinking it was the serpentine belt. They had it in the bay and could not get the air to not work, then they took it for a test drive only recreating the problem once. And by the time they got back and put it back in the bay it was working again. They told us they were stumped and had never seen anything like it before. They said the serpentine belt was fine had a few minor cracks here and there, and they tried to charge it with freon and it would take any. I noticed today that the compressor is coming on but still is alternating between cold and hot air. It's a total hit and miss situation. If anyone has any ideas, it would be much appreciated. Thanks