Hello all, I have a 1993 940 wagon. This is what's going on. When I'm driving down the freeway, the A/C blows cold. (around 40 degrees) However, when I'm in stop and go traffic, or just plain stopped, the A/C will stop and warm air will start to come out. If I get going again, or get on the gas, the...

Hello, I have a 1993 940 wagon with 66k. My problem is this... When I'm driving on the freeway under normal driving speeds, the AC works great, and blows around 40 degrees. When I'm in stop and go traffic with the AC on, the temp gets much warmer. Then, if I continue to leave on the AC, the car will...