ok guys tell me what you think. i was on the highway this afternoon and put on the a/c, and the a/c only blew through the defrost and floor vents. checked my codes and a011 current showed--but i've had that code since i bought the deville about a year ago. i thought the problem might be vacuum related because i noticed my cruise control wasnt working the day before yesterday. what do you guys think? where should i troubleshoot first? thanks in advance!