ls1ow

iTrader: (1)

well i just purchased a 2004 GMC Z71, and after a few days i noticed the A/C would stop blowing cold air when at idle, but i would blow cold when driving down the hwy at 60mph, so i had the system recharged and it only made it worse, now it blows cold sometimes down the hwy and sometime at idle, also the recirculation is not working, I have the auto dual climate control, the light comes on when the button is pushed, but nothing happens? Also i changed the orifice tube last night and it didn't seem to make a difference, is this a blend door issue? I have a couple people tell me is is a weak compressor, but i want to make sure that is the issue before i spend 300 on a new one, also a friend works for a dealer, he said the recirculation button not working could just be the climate control needs to be reprogrammed? has anyone ever had these issues? any help would be greatly appreciated

thanks,
Mitchell

terravast4

iTrader: (25)

check the wire connector at the blower motor resistor. check for burnt wires and check inside the connector also. my a/c did this for a while before the wires fried at the connector.