I bought my 02 suburban about 6 months ago, and i never tried the rear ac until today. It came on for a few seconds and immediately stopped blowing. now it does nothing. From the front controls or the rear. The Ac works fine in the front, but nothing in the rear. I know it works because it came on for a second. Where should i start? Maybe one of the switches? I dont know where to start looking. I live in south Louisiana and its starting to get really hot. I would like to try and get it working again, but Ive never had to do anything to this truck yet, so I dont know where to begin.

 

95 views, anybody?could it be a switch? blower motor?

 

You might be right on the motor or switch, but maybe the resistor to the motor or fuse. Check those also.
Front a/c works fine correct? if so, it's not a refrigerant problem I don't think.