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2004 Yukon XL Passenger Side Blending Door Actuator

jeff in co

jeff in co

1/2 ton status
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Finally got around to changing out my AC Blending Door that was unbelievable to get to. It's been making an annoying sound, clicking and trying to constantly adjust. Figured I'd better do it before it starts getting cold. This also controls the amount of hot and cold air so I assume it will be a bit more correct when setting the temp.

Had to remove dash, Passenger airbag and a bunch of supporting pieces. In the end, success!

I followed this thread which was excellent! Picture by picture along the whole way. This guy did an excellent write up so wanted to pass along for others.....

http://www.sparkys-answers.com/2011/03/2004-chevrolet-silverado-dash-cover.html
 
This looks shitty. I need to do this. Not sure which actuators on mine are bad cause i never sit on the passenger side, but at least the drivers hot/cold damper and the vent mode damper need to be replaced.

Thanks for posting.
 
I ended up changing the actuator that controls the defrost as it was stuck in the defrost position. This actuator is above the gas pedal, took about 30 minutes to replace. Now I'm hearing another noise which I've traced back to the fresh air actuator. If I leave it on the recirculating function it's quiet.

So I'm going to order the other two actuators and rip this apart. Should be fun....
 
skunked said:
Might as well. I was hoping the one defrost actuator was the only issue since that can be replaced without removal of the dash.
Click to expand...

This is supposed to be my reliable truck, so need to do what i need to do to keep it so. Frustrating when the 91 has less little issues than my newer truck
 
dhcomp said:
This is supposed to be my reliable truck, so need to do what i need to do to keep it so. Frustrating when the 91 has less little issues than my newer truck
Click to expand...

meh, just working the bugs out......

my 2002 is the most reliable truck I've ever owned. Then again it's the least modified :D
 
skunked said:
meh, just working the bugs out......

my 2002 is the most reliable truck I've ever owned. Then again it's the least modified :D
Click to expand...

Haha. Don't think my 03 qualifies for that title anymore. Haha
 
Yep! Planning to keep it fairly stock too. After my TBI 350, stock dmax feels like a rocket.
 
So, which HVAC controller do you have

I can't make sense of which actuators i need. I want ot replace them all.
 
I'm finally getting around to this repair so I ordered the fresh air and the temp control actuators. AC Declo 15-72507 & 15-73599. I already replaced the defrost actuator as previously mentioned. Hopefully I ordered the right ones, it was very confusing ordering these.

I should also mention that my truck does not have climate control.
 
Mine showed up, 2 little box ones that have different part numbers and look the same, and one wiht the big slidy half wheel thing on it.

Who knows if these are right. There are too many variables in this system, and i can't find a good drawing. Mine is the auto climate control, but i'd love to swap to manual if it was easy.

Best of luck, let me know how it goes.
 
Saturday I plan on tearing it apart, I'll let you know how it goes.
 
Holy crap this project sucks.

4 total actuators, 3 are the same, drivers lower is different.

Of course, i had 1 on hand to replace the 3.

$115+ for delco's each, ordered.

Drivers lower isn't terrible, neither is passenger lower.

the 2 uppers on the passenger side are terrible. Full dash removal, airbag removal (scares the $hit out of me), plus really weird contorting and working around ducts. My arms and hands are all scraped up.

Wrestled with the fresh air one for almost and hour.

So now, the truck sits, until the rest of the parts arrive.


Parts that came out were:

Drivers defrost : 52495593
Other 3: 16163982


God i hope this all works as designed when it is back together.

Remind me how this is a superior system to my 91? The stuff on the 91 works great all the time......

Grrrrr.
 
dhcomp said:
Did you have better luck than me?
Click to expand...

Nope, parts are on the bench waiting. I was having some issues with my 2 door that I needed to get squared away before I ripped the 4 door apart.

Still not looking forward to it...
 
skunked said:
Fun

I hope you don't have a swear jar
Click to expand...
Didn't find any stripped gears or noticeable trashed actuators. Hope the motors have just gone.

Could be worse though. Really glad the Burb fits comfortably in the garage, despite the center door post.

Getting it out may be more difficult though....
 
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