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Any auto A/C guys in the house?

Posted on 7/10/15 at 3:59 pm
Posted by Big_country346
Member since Jul 2013
3655 posts
Posted on 7/10/15 at 3:59 pm
'06 Silverado with the old style dual climate control. Yesterday while heading to work, the driver side vents started blowing hot air and the passenger side vents were still blowing cold. When I cranked it back up this morning, i had no issues on the way home. The driver side just flipped to hot air again a while ago. Any idea what's going on? Maybe a simple fix I can do myself?
Posted by Motorboat
At the camp
Member since Oct 2007
22763 posts
Posted on 7/10/15 at 4:01 pm to
press the button that looks like a snowflake
Posted by Agforlife
Somewhere in the Brazos Valley
Member since Nov 2012
20102 posts
Posted on 7/10/15 at 4:15 pm to
It's the little motor that controls where the air goes, you have a couple of them under the dash. The part is cheap and you can do it yourself in an hour or so. If you do it be sure and do what the instructions say about not Appling any power to the motor until it's in place and tightened down.
Posted by Clames
Member since Oct 2010
16733 posts
Posted on 7/10/15 at 4:16 pm to
Actuator harness or the actuator itself, common problem with the dual zone system in those trucks.
Posted by REB BEER
Laffy Yet
Member since Dec 2010
16308 posts
Posted on 7/10/15 at 4:18 pm to
I had an 05 Sierra and my wife had an 04 Yukon, and both did the same thing periodically. Most of the time if I just turn the engine off and back on it would go back to normal.
Posted by Polar Pop
Member since Feb 2012
10753 posts
Posted on 7/10/15 at 4:18 pm to
Blend door actuator.

When I had a 2005 Silverado and the blend door actuator went out, I was only getting cold air out of the defrost vents near windshield.

It was about $300 P&L at the stealership.
Posted by ccard257
Fort Worth, TX
Member since Oct 2012
1320 posts
Posted on 7/10/15 at 4:18 pm to
I used to just shift to neutral, and restart the engine. Drove my wife nuts when I did that on the highway.

Then I bought a ford *ducks*
Posted by GeeOH
Louisiana
Member since Dec 2013
13376 posts
Posted on 7/10/15 at 5:45 pm to
I guess I'm just an ole grumpy SOB, but why are there threads on this board about a/c's, hot water heaters, etc?

I seriously ask because if it's a truck, that slides it into an outdoors type vehicle used for hunting?


Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 7/10/15 at 7:53 pm to
Blend door actuator. Have changed out a few, and the passenger side sucks big time

Eta: Basically look at the spot on the dash between the radio and the airbag. From there, go almost all of the way in the dash to the window. It's in there
This post was edited on 7/10/15 at 7:59 pm
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5528 posts
Posted on 7/10/15 at 10:11 pm to
Nice wallet Costanza.
Posted by 300HOGSLAYER
south of I10
Member since Nov 2014
312 posts
Posted on 7/10/15 at 10:47 pm to
Part #89018365 I change a shite pile of those actuators
Posted by Bronco
Down Da Bayou
Member since Dec 2012
34 posts
Posted on 7/11/15 at 8:28 pm to
Hammer time is right Blend door actuator. You tube it take it out and take it apart. Clean out all that grease in there and put it back together. Did that to mine been cooling for couple years since.
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