2005 GMC Sierra 2500HD - Replacing HVAC Blend Door Actuators
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- In this video we fix 2 of the HVAC blend door actuators in the Duramax. When I hit a bump the AC on the drivers side will start blowing hot air - also the HVAC will stop blowing air into the cabin. So to resolve these 2 issues - we replace the lower actuator on the passenger side - and the actuator on the drivers side.
Parts/Tools Used:
Blend Door Actuators: amzn.to/2z9XEqt
Milwaukee Battery/Charger - amzn.to/2GEcS8d
Milwaukee Fuel Ratchet - amzn.to/2IGdMab
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Thanks for the help brother. Randomly my a/c starts blowing hot air on my driver's side when a/c is running. Going to replace the driver's side actuator as soon as I get the time. Appreciate the video because I like doing this stuff myself and not get gouged by a mechanic.
Drivers side really sucks - just a fair warning. Pass side is a lot easier.
Hey John H did replacing the drivers side actuator fix your issue. I have the same issue. I have to hit the ac controls in a certain order otherwise it does that Everytime and shutting the truck off don’t always work, I’ve drove a couple hrs with heat blowing out one side and ac on the other in 100deg weather….that sucked
Haven't gotten around to it yet. I hear you about the heat though I live in FL and it sucks when it randomly happens. Shutting truck off and back on works but can happen next time I start up truck just as easily. Hey do you hear a clicking or grinding noise under your dash randomly also?
Great video ! PS: Way too many 90's on that tankless water heater !
Huh?
Thanks for the bid but I really wish people would show removing everything instead of talking about it after the fact
Unless you take the dash out of the truck completely - there is no way to film in that tight of space.
Thanks for the good info:>)
Would you know which actuator needs to be replaced for the drivers side blowing hot air? I really can only replace the one that is the problem right now.
I too could use an answer to this
Another video of this process explains that the passenger side actuator on the floor is responsible for controlling the heat/AC to the driver side vents. The drivers side actuator on the floor is responsible for directing the air from vents to floor/defrost/vents. There are two more actuators up under the dashboard for controlling heat/air to the passenger side and another actuator on the firewall for controlling fresh air or recirculating air.
Chris replied below.
I have the driver side working perfect. Passenger side does not work. I replaced the one on the passenger side and it didn't solve the problem. Do you think if I replace the one on the driver side it will fix the passenger side?
I reset everything too. Nothing fixes it
There is one at the top of the hvac box - that might help out.
Thanks-
I just put one on my passenger side this morning-
And when I started it up, I noticed absolute zero change.
Didn’t know it also had one up on the drivers side.
Mine was blowing cold on driver’s side, when heat was working fine on passenger side.
I believe the one on passenger is good,
My problem just be the driver side.
My first problems where - hot on driver - cold on pass when the AC was on. Replacing the actuator behind the center console fixed that issue.
Second problem was the door being in the wrong position - ac/heat going out the wrong vents - to fix that - that was the actuator on the drivers side up behind the steering wheel.
I’m getting a random but constant tapping noise under my passenger side. 05 sierra w dual zone w/o auto climate control.
It sounds like it’s centered in the passengers dash and straight down from the base of the windshield.
Any knowledge on that would be very much appreciated.
Seems like everything works ok but it’s pretty unpleasant and I imagine it could cause real problems soon
One of the door actuators is messed up - could be the one at the top by the windshield - or the one on the bottom behind the radio.
@@bonecrrusherSS there’s one on top? For what? Cause it definitely sounds high. How would I get to that? Full tear down?? 😬
Love the Duramax/truck content. Keep the vids coming brother...
Got a couple of truck projects coming up - after the Corvette.
I WISH YOU SHOWED HOW YOU TOOK IT OUT AND IN
As mentioned in the video - you cant get a camera up there.
Hi, Do you know which actuator is the one that fixed the hot air blowing on the driver's side? That is my issue. Thanks
Justin I ended up replacing both of them - thr cost isn't much. The one under the driver's dash is the worst.
❤❤❤
Thanks.
I’m hoping someone can help. My truck is a 2007 classic body 2500HD DURA-LBZ and my temperature isn’t regulating properly. Heater only comes on if I set it to 90°. I have the same climate controls as in this video. All vents and switching between them work properly. I can only have ice cold air (when set at 60°-89° on display) or hot air (when set at 90° on display). What is likely the issue? My dash unit? Or is the thermostat a separate part? Thanks in advance. This is the best video I’ve found so far for these types of issues. Great job!
That sounds like the climate control itself is messed up.
One of the issues I had - was the heat was coming in on one side - and AC on the other. That ended up being one of the blend doors.
Your issues sounds very temp specific - and not a door issue.
Thank you so much for this video, I was able to repair it myself. A little stubby socket wrench and flexible extender made the job much quicker, probably took 45 min total.
Good suggestions!
Got my part today gonna install tommrw hopefully works
Hope it works out.
Question, I am having issues with my hvac. I am not having issues with the actuators but I am experiencing not very hot heat or very cold ac. Is there a hvac diverter that will allow cold air to blow and not heat, or vice versa.
That door does have an actuator that can fail - usually its the one behind the radio. 1 side blows warm - 1 blows cold.
I appreciate your video but would have liked to see how much trouble you had getting the top screw out on the drivers side and how you got the new actuator and blend wheel back in under the white control mechanism and the top screw back in. I had a heck of a time getting it out and haven't gotten the new one yet. How did you get the top screw back in?
Unless you have the dash completely out of the truck there is no way to film it.
Either used a short screw driver - or a screw driver bit and a 1/4" ratchet.
Hi
Are the parts from Amazon still working? Quite a few reviews have them failing within weeks of doing all the replacement work. Just curious. I have replaced once already and need to do again, trying to find a quality replacement part that will keep working. Did you try to clean/inspect the original from the truck?
One is still working - and one failed. The one controlling the various positions failed - and I replaced that with the GM one. See my update video here - th-cam.com/video/iV7B0D9R8CA/w-d-xo.html
USELESS
Glad to help.
hi, I have the same truck (07 classic 2500) with the same controls, any mode I select, all 4 vents blow air, but defrost and floor stop and turn on how they are suppose to. which actualor do I need
That might be the actuator door under the dashboard up above the gas pedal on the drivers side. You move that one - that will move the doors between the various vents.
Very helpful video! I'm in a bit of a pickle. I'm trying to fix my old mans '01 silverado 1500. The ac/cold air only works on the defroster setting. If i turn it to vent with temperature set to cold the air is HOT.. same with the feet the air is HOT when it should be cold.. the air is hot on every setting except the defrost setting. I know the blend door is not stuck because i pulled the actuator and was able to turn the little knob manually by hand. I ordered a new blend door actuator for the passenger side near center console in hopes that its my problem! I'm just not sure if it is because I am able to get cold air/AC to come out of the defroster while every other setting blows nothing but hot air.
I'll be honest - it's been awhile since I worked on this project. Hot air coming out of the wrong vent - I am 99% sure thats the blend door behind the center console - fix it from the pass side.
@bonecrrusherSS have it in the mail should be here tomorrow. Thanks for your video & taking time to reply. You earned my support!
What part did you install for the right side
For the one on the passenger side - and the one on the drivers side lower - I used this one Blend Door Actuators: amzn.to/2z9XEqt
Do I have to change both side cuase my mode is stuck im gonna ot om the driver side n see how it goes
03 suburban dual climate control. At 90 degree setting you have heat at 89 degree setting you get cold. What causes this? Thank you.
Sounds like you have the non digital control. Don't have that in my truck.
@@bonecrrusherSS hello thank you for the reply, it is digital.
My 2002 tahoe is blowing air though the defrost none through the regular vents is this the right video
Yes my truck did the same thing - I ended up replacing the door actuator on drivers side up under the dash
Not sure of the purpose of the video when you say "not sure if you guys can see this", several times then the next scene is showing the units installed. If youre doing a video about an installation and you say not sure if you guys can see this, that should be a red flag to all viewer. Is the video about you, which we saw a lot of in the first part of the video, or is it about replacing the HVAC blend door actuator? I say it is about the former. Oh yeah, you didn't mention the fan behind you in the first part of the video.
Thanks for commenting and supporting the channel.
Do you have time to answer some questions for me? I have a 2004 Gmc Sierra 2500HD as well.
What are your questions? I'll try to help if I can.
My system works great except for occasionally the air stops blowing from the vents. I can change to different zones but nothing. Do I need to perform a reset of the ac controls or does this sound like a actuator issue? I have the digital ac control on my 2006 Sierra 2500HD.
My truck did that for a few years - I would have to turn the truck off for the vents to reset.
I replaced these 2 actuator doors - and that doesn't happen anymore.
bonecrrusherSS I can replace both with this single part linked in the description? Dorman online chat said I have a total of 4 actuators. 3 are PN 604-106 and 1 PN604-112 (Mode Actuator). It’s hard to think we have 4!!!
Quick question, how did you get the top screw out of the driver side actuator, I have little to no space for tools to get in there. Thanks in advance.
Are you talking about the actuator with the black plastic door mechanism on it?
bonecrrusherSS yes, the screw on top has very little clearance and I’m on the fence about taking the center console out. Thanks for the speedy reply!
You are a legend . I’ve searched for this video for sooo long. Thank you soo much !
Glad it helped!
06 GMC 2500HD when the truck is running it blows good ac but when im on a red light it start to blows heat
Did you ever get this problem fixed ?
Fan clutch
How did you get it out without breaking it? The driver side top screw is impossible to get to.
Might sound stupid - but take the seat out and lay on your back. Might be easier to get too.
I swore a lot and had to try multiple times to get it out.
1/4 wobble extention 7/32 socket , turn it with pliers . Its not too tight .
What radio do you have?
Escalade radio... th-cam.com/video/55KvqncaDFs/w-d-xo.html
Were they the same part for both of them?
Also do you think taking the radio and temp controler on dash you could get to that one easier
No - the one is behind the radio - that won't help access to it.
For the one below the radio - and the one on the drivers side - I think they where the same.
Hey man I have an 05 GMC Sierra exstanded cab 4 door 4.8 It blows but not cold or hot if you could hit me back I have Any freeze
Does it work in any modes?
Saying “you gotta get these screws out and they are weird” is pretty much the kinda stuff ppl need to see and actually watch this video for. Not a good installation video.
You can't get a camera up in the dash to get a good shot - so describing it is the best thing you can do.
did you pry the old ones open and see why the gear broken?
Nope - replaced them and threw them out. The insides have plastic gears and they break down over time.
Fail
Yup