So yesterday I went out to my uncles house out in Murrietta CA where it is about 101-108 degrees out, almost arriving there my a/c starts to get warm and moist feeling. The a/c then came back and got mild cool until we got there. After being there for about 4-5 hours we left. While driving back home with the a/c on (that is not cold at all) , I hear a big swueal from under the hood and the a/c went really warm. I have an 03 CTS, can someone please help me? Thanks!