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re: OB Mechanics..AC problems on gmc sierra

Posted on 7/26/15 at 1:18 pm to
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 7/26/15 at 1:18 pm to
There are two actuators. The one on my old 05 Tahoe was way up in the dash. Had to take the airbag out and everything. That had a center console in it

They are also very picky about how you put them in. Did you match it up perfectly with the old one? Did you run through the cycles of hot and cold a bunch of times? Also, I have heard stories of a bunch of them being bad out of the box.

Can you hear it switching?
Posted by Flanders
Bham
Member since May 2008
9848 posts
Posted on 7/26/15 at 1:32 pm to
How do you know which actuator to replace? I have the full center console but I only replaced the one under the right side glove box.

It had to be matched up it only went on one way. I can't hear it switching. Where should I be listening for a switch and when?

When I turn it off and back on it will blow cold again for about three minutes before going back to hot.
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