03 H2 A/C quits

[wrangedog]

Hi,
When I start my H2 the a/c seems to work fine, but after 5 minutes or so it no longer blows cold air. It almost appears that the blower stops blowing. Can the blower motor be going and cuts off as it heats up? I have reviewed the other a/c threads and I haven't found another listing the same problem. What would be the easiest way to troubleshoot this ? I am sure replacing the blower is no cheap or easy task, thanks to all, John

[pdsq99f4]

Kind of sounds like it's freezing up. Does it drain a lot of water out for quite a while after you shut it off? The 03-04's had the orifice tubes installed backwards. It could be caused by that if it's never been flipped. Can you hear the blower motor when this happens?

[wrangedog]

Hi,
Yes blower sounds as if its blowing, just no air flowing from the vents. The other day it worked for approximately 1/2 hour, I thought it might be okay again. But it still does it. and yes it does appear to drain alot of water. How can I test your theory? I think you might be on to something, thanks, John

[jersey]

Sounds like a vacuum line might be off preventing the vents from opening/ closing properly. Also make sure there is nothing blocking the intake vent under the dash, like a plastic bag that may have gotten sucked into the system.

[IRA51]

No vacume lines ,blend door motor . $130.00 at your Chevy dealer with discount ,retail 165.00.
check Rockauto.com