Boy, is it hard to own an old car. I have had this problem before where when idling, the A/C stops working. It was fixed, but then it happened again this summer. First, because of the car's age, they had to put in a new R-something unit. That temporarily worked. Then it happened again, only not as bad, and it turned out the compressor had cracked into pieces. Ouch to my wallet. I sure hope the problem is fixed now. That's a $800 investment this summer that I wasn't counting on.