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Author Topic: How to replace one of the blend door actuators  (Read 15475 times, 32 Replies)
rbarrios
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« on: December 05, 2012, 04:22:13 PM »

Hopped into the car- turned the key and heard a quick whirring sound associated with the AC vents that move when you turn the key.
I Knew exactly what it was. (I had replaced one of these on my Impala).
I lowered the glove box- and you can clearly see one of the actuators.. theres 2 I believe. I put my fingers on it and moved the vent selector-- and felt the clicking on the actuator shown in the pic. I touched the 2nd- it was smooth.
Whats interesting about this is that it whirrs in one direction only.
In the video you can see the round metal thingy move.

I grabbed my tools and proceeded to remove it.
Unplug the connector at the actuator.
3 screws- with torx screws. (T20 I believe).
I lowered the glove box and removed the blower fan shield. (2 push tabs fasteners).

WARNING-- if you have big hands-- this is going to be hard. I have small hands and was able to stick my hands in from the glove box opening and from underneath. I used a small ratchet to help me. THe hardest screw to remove is the top. The other 2 are easier to reach from the bottom.
At times I was laying on my back with 1 hand thru the bottom and one thru the glove box.
I also disconnected the blower motor plugs (2 plugs that were in the way).
The area where the edge of the cabin filter plate is-- that piece kept rubbing my hand.. the top of my hand is not cut-- but is a little sore from that plastic digging into my skin.


the sound.... It actually sounds loud-- because the camera is close. With you sitting in the drivers seat- its a bit quieter.

The actuator as seen from the open glove box





Once the 3 screws come off-- the actuator slides off




Having dealt with one of these in the past... The one in the Impala had broken teeth- which was causing the loud noise from grinding gears.

So I took apart the actuator. (theres tabs around the actuator that you can lift up with a screwdriver).

Here it is taken apart. (note it says LAMBDA FR) on the bottom.






But interestingly enough-- there were NO Broken gears. They were all OK.
I then worried that it may be the vent door....   Oh No

But then I removed the gears and spun the motor.  
It turns very smoothly in one direction... but in the opposite direction it clicks.
This is where the whirring is coming from..
Good thing its not vent door related.

I will update when the new part is in.




« Last Edit: May 30, 2014, 12:55:50 PM by rbarrios » Logged

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
rbarrios
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« Reply #1 on: December 05, 2012, 04:24:08 PM »

I have ordered the part from a Cadillac dealer- who will get it from a GMC dealer- who will get it from a ACDelco place.
$39.

I should have it tomm evening.

ACDelco part - 15-73989
GM part- 20826182
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
jpalm
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« Reply #2 on: December 11, 2012, 10:26:43 AM »

Hi- I came across your post and I think my drivers side blend door might be stuck, broken.. who knows!  Is there anyway to get to the drivers side blend door actuator?  I took my vehicle to my service guy before the warranty ran out and he made some adjustments but when I mentioned the heat not working properly her said he couldn't see anything wrong, and he was right.. it started working.  Now 2 weeks later, warranty expired and I haven't gone to sign paperwork for the extended warranty that I am purchasing, so with that being said it's 27 degrees and I am freezing my tail off in my car.  I turn on the passenger heat and rear heat and aim the vents towards me.  I need to see if this is something that I or non-mechanic husband can take care of.  Any advice would be appreciated.
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rbarrios
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« Reply #3 on: December 11, 2012, 11:16:58 AM »

You know- I have not looked on the drivers side-- so I cant say how easy/hard it would be to access the actuator.
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
rockyp
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« Reply #4 on: December 11, 2012, 12:06:38 PM »

Gosh, rbarrios, I think that's the only part of the car you haven't opened up and photographed!!   Happy

Your repair pictorials are simply amazing!!
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2008 Cocoa CXL AWD, Nav, Rear Ent - Owned 72 months, 135,900 miles. Traded 9 days short of 6 years of ownership for new Subaru Outback.

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rbarrios
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« Reply #5 on: December 11, 2012, 12:30:05 PM »

Thanks rocky...


Got the replacement part.
Took me 25 min (with my 3 yr old getting in the way- 'helping me').
Problem resolved. Nice and quiet again. $38.xx for the part.
New part on the left.
Says made in India





this is where it attaches to.





To get to the topmost screw... How I accesed it....
My wrist veins are up against the right angle piece of plastic..... Like I said-- tight fit in this area.







« Last Edit: May 30, 2014, 01:00:58 PM by rbarrios » Logged

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
jac-3
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« Reply #6 on: December 14, 2012, 08:43:01 AM »

I was having actuator issues too. I'm at about 48600 miles, so wanted to get it in.
They replaced the controller head, not the motors.

They even vacuumed out the car.

Toasty warm today.

JPALM: Since you brought up during the warranty period, I would think that they should service it under warranty.
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2010 CXL AWD Enclave. 8 Pax.
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txhokie4life
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« Reply #7 on: February 16, 2013, 10:37:14 PM »

I've got a 2010 Cxl

When AC is turned on I get a whirring sound
Lasts a few seconds

My guess is some door opening closing.

Ill have to put an ear closer to glove box

But from drivers seat sounds like behjnd head unit
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rbarrios
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« Reply #8 on: February 17, 2013, 12:03:38 PM »

I've got a 2010 Cxl

When AC is turned on I get a whirring sound
Lasts a few seconds




does it sound like the video I posted above?
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
GoldEnclave
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« Reply #9 on: February 17, 2013, 03:34:10 PM »

rbarrios, the video links are not working. You may need to reload them. Huh?
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rbarrios
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« Reply #10 on: February 17, 2013, 07:28:11 PM »

Hi.

I Just clicked on the image/video above and worked for me.

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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
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« Reply #11 on: February 17, 2013, 10:39:59 PM »

When I try to view your Photobucket video, I get the following error message: "! There was a problem playing your video." "Video not found"
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jdens
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« Reply #12 on: February 17, 2013, 11:32:31 PM »

When I try to view your Photobucket video, I get the following error message: "! There was a problem playing your video." "Video not found"

+1
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slybarman
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« Reply #13 on: February 18, 2013, 11:18:38 AM »

When I was driving my wife's enclave yesterday, I noticed the auto climate control was not holding temp very well on the drivers side, it was going back and forth between too warm and too cold. Would that likely be related to one of these blend door actuators?
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GoldEnclave
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« Reply #14 on: February 18, 2013, 11:38:43 AM »

If the HVAC behavior that you've described is a departure from how it had been working, it could be due to trouble with the blend door actuators. Maybe someone can describe how to diagnose the problem since I do not know how to do that.
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2008 Gold Mist Enclave CX AWD, Cashmere Cloth, Driver's Confidence Package, 8 passenger seating
rbarrios
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« Reply #15 on: February 18, 2013, 05:40:45 PM »

does this direct link work?


http://s837.photobucket.com/albums/zz293/rbar70/2010/?action=view&current=MOV06945.mp4
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
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« Reply #16 on: February 18, 2013, 08:41:26 PM »


Not for me.

Sent from my Galaxy Note 2 using Tapatalk.
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afornal
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« Reply #17 on: February 18, 2013, 09:15:18 PM »

I had to replace my acuator on the passanger side this past summer. Wasn't that hard of a job. My symptoms were that  the passenger side air was stuck on hot air, would not change to cold (wich really sucks in the summer by the way!) I had about 57k miles on it at the time.
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rbarrios
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« Reply #18 on: February 19, 2013, 12:17:52 PM »

Not for me.

Sent from my Galaxy Note 2 using Tapatalk.

Dont know what it could be-- I can click on pics or the link and play the video... (and im not signed on to my photobucket acct)
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2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L -    27,000
2010 Traverse 3.6L-   84,000
2003 Trailblazer 4.2L-173,000
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« Reply #19 on: February 19, 2013, 07:24:50 PM »


Yes, this one worked via my desktop version of Firefox.
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