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About to try it today, mine stopped working in June and its stuck in windshield and foot...the windshield keeps fogging up otherwise I'd have done it later....just couldn't be stuck in facing the passengers so I could have have just left it when I'm more free...maybe if I can grab the blend door itself and just turn it to face the passengers I'll skip doing the actuator it self for now and disconnect its fuse so it doesn't try to turn again. Will update
I swear if I ever meet the engineer who came up with this design I am going to slap them right in the face. After trying for more than a few hours and using very inappropriate words and gestures I came to the conclusion that either A) The whole dash would have to come out (did not even want to try) or B) I needed to get clearance somewhere.
My solution: I drilled out the Aluminum frame in the corner where there was already a hole. I kept going until I had enough room to get my socket, swivel and extension to work. Came out easy.
That was the my solution to get to the bolt you could not see. I started small and kept going until I got the clearance I needed. It lined up really good after drilling the hole.
so what all did you remove to access this aluminum frame? I'm replacing mine tomorrow.
The dealership wanted $1000 to replace the AC actuator that controls the front vents. The actuator is behind the passenger vents and in order to get to it you have to take the whole dash apart. I'm to the point where I can see the actuator but have no idea how to get to it or what else I can take off to get to it.
Has anyone done this? The pics are from the passenger side dash, first one is showing where it's at the second one is the actual actuator. Theres two bolts holding it in.
I know this is a old post. But did the actuator make any noise when it messed up on you?. I have pulled the blower motor (Which still works) and cleaned it. Remove the filter and clean everything out. And replaced everything. I have pulled multiple fuses, disconnected the battery and all reset controls. Unplugged the blower. I'm still getting a noise like something is constantly running and can't get it to stop. My air-conditioned blows cold on driver side. But passenger side is blowing hot. Any response would be highly appreciated. Thanks in advance
I swear if I ever meet the engineer who came up with this design I am going to slap them right in the face. After trying for more than a few hours and using very inappropriate words and gestures I came to the conclusion that either A) The whole dash would have to come out (did not even want to try) or B) I needed to get clearance somewhere.
My solution: I drilled out the Aluminum frame in the corner where there was already a hole. I kept going until I had enough room to get my socket, swivel and extension to work. Came out easy.
That was the my solution to get to the bolt you could not see. I started small and kept going until I got the clearance I needed. It lined up really good after drilling the hole.
The passenger side is not the actuator that controls the vents. That’s another temperature control module. The vent actuator is on the driver’s side. I took my entire dash, center console assembly out of my 2015 Z06 and was able to get to the $30 part.
The passenger side is not the actuator that controls the vents. That’s another temperature control module. The vent actuator is on the driver’s side. I took my entire dash, center console assembly out of my 2015 Z06 and was able to get to the $30 part.
OK, seems I'm joining this club, I found one YouTube video that seems to concur with this location. The chevy tech didn't pull the dash off either, did everything from below with the seat out. I need to do more research
OK, seems I'm joining this club, I found one YouTube video that seems to concur with this location. The chevy tech didn't pull the dash off either, did everything from below with the seat out. I need to do more research
I don't think it matters what the tech does. If you balk at the cost, they SA will tell you "Well, that is only an estimate and the worst it can get. If they get it done faster, it could be less.". Total bunch of BS. In 30 plus years of getting car repairs done, I have never seen it happen.
I don't think it matters what the tech does. If you balk at the cost, they SA will tell you "Well, that is only an estimate and the worst it can get. If they get it done faster, it could be less.". Total bunch of BS. In 30 plus years of getting car repairs done, I have never seen it happen.
Having been a tech, there's three ways to quote a repair. Flat rate, agreed to estimate, and time and materials.
I'm not really interested in taking it to a shop, I've got most of the the tools and can work on it as needed. If I can replace the mode door actuator I'll do it. I'm hoping it won't need any recalibration. The big thing is getting access under the left side of the dash, maybe getting the vent loose and out of the way and making sure I've got the torx 15, and a 7mm, and I think a 5mm, if not I'll buy them. I'm also very clear that the driver seat comes out and I'll be doing this on my back upside down.
Having been a tech, there's three ways to quote a repair. Flat rate, agreed to estimate, and time and materials.
I'm not really interested in taking it to a shop, I've got most of the the tools and can work on it as needed. If I can replace the mode door actuator I'll do it. I'm hoping it won't need any recalibration. The big thing is getting access under the left side of the dash, maybe getting the vent loose and out of the way and making sure I've got the torx 15, and a 7mm, and I think a 5mm, if not I'll buy them. I'm also very clear that the driver seat comes out and I'll be doing this on my back upside down.
I get flat rate where it goes off the number of hours as stated. I get "time and materials" where I am billed for a project based on how many hours and what material goes in. Can you elaborate on "agreed to estimate"? Not sure how it works.
I'm not a tech but I bought a bunch of "one off" tools in the past. Finally got so fed up with them I just gave them away. Kinda like my C7 front wheel that sits in the spare bedroom. It has a slight dent that was fixed but no one seems to want to buy it. If I were a tech, I would have used it enough. Now, it became junk to be thrown away. Kinda why I am leery about buying more tools.
Having been a tech, there's three ways to quote a repair. Flat rate, agreed to estimate, and time and materials.
I'm not really interested in taking it to a shop, I've got most of the the tools and can work on it as needed. If I can replace the mode door actuator I'll do it. I'm hoping it won't need any recalibration. The big thing is getting access under the left side of the dash, maybe getting the vent loose and out of the way and making sure I've got the torx 15, and a 7mm, and I think a 5mm, if not I'll buy them. I'm also very clear that the driver seat comes out and I'll be doing this on my back upside down.
No calibration required when replacing actuators, if the HVAC module is powered down, next time it's up it will sweep all the doors to find their position and your good.
Also please report back if mode actuator can be removed out the bottom I'm skeptical. As these cars age all these cheep plastic actuators will fail and would be good to know alternative to removing dash.
[QUOTE=aklim;1608795047]Can you elaborate on "agreed to estimate"? Not sure how it works.
agreed to estimate, the owner accepts the price provided by the shop. Who knows how the price was determined and if it is good? When I need specific work I figure out the best option for my needs, usually it's a flat rate quote from one of the technical subscriptions many better shops run from and, they will have prior experience doing the work. Sometimes a dealer may be the best option due to the depth of knowledge and access to specialized tools, but not all dealers are the same, then what?
The passenger side is not the actuator that controls the vents. That’s another temperature control module. The vent actuator is on the driver’s side. I took my entire dash, center console assembly out of my 2015 Z06 and was able to get to the $30 part.
I highly appreciate your response. Question? Did yours have all the noise coming from the passenger side of the dash? The noise is coming from the left side of the glovebox. Close to the upper left side of middle dash. As soon as you start the car. The noise starts. Sometimes it takes a few minutes to start.
OK, seems I'm joining this club, I found one YouTube video that seems to concur with this location. The chevy tech didn't pull the dash off either, did everything from below with the seat out. I need to do more research
I seen that video as well. I been researching this for awhile now. Before i start ripping my dash apart. My concern is all my noise on mine is coming from the passenger side of the dash above the left side of the glovebox..They are two of these mode door vent actuators. One location on drivers side of the dash. And one on the passenger side of the dash. My situation is. Everything on my driver's side (Heat & air-conditioned) works as it should. Climate control still works on passenger side. But my passenger side is stuck on heat. And I can't get the air-conditioning to work for the passenger side. The are a loud clicking noises coming from the upper left side of the passenger side glovebox. Curious if yours is making noise or not? I have heard different stories about these actuators going out without noises. And some situations they make alot of noises.
Last edited by Allen650HP; May 11, 2025 at 03:17 PM.
The dealership wanted $1000 to replace the AC actuator that controls the front vents. The actuator is behind the passenger vents and in order to get to it you have to take the whole dash apart. I'm to the point where I can see the actuator but have no idea how to get to it or what else I can take off to get to it.
Has anyone done this? The pics are from the passenger side dash, first one is showing where it's at the second one is the actual actuator. Theres two bolts holding it in.
2014 C7 Z51, I'm going to start pulling my dash apart from the passenger side because that's the side that is making the loud clicking noises by my glovebox. (Im going to follow the loud clicking noises until i find it) And also my passenger side is stuck on heat. So my situation is simular to the post I'm quoting above. Like I stated before. They are two of these vent door actuators. One on driver side and another on passenger side. By chance somehow the noise on my passenger side is caused by the driver side actuator? Then I will pull the driver side apart as well and replace both actuators. I will perform this work myself. As I already had bad experience with two of the local Chevrolet dealerships that are closest to me. And dont trust either dealership at this point. I will try to take pictures of the work and document it here to add for more future reference material for the next guy. As I have found references on how to take the passenger side dash apart. But haven't seen much documentation on the drivers side. So I will research and find those documents.
Also:
Heating and Air Conditioning Panel Mode Door Actuator on GMpartscenter.net is labeled #7. I have physically unplugged this actuator on the far right of the passenger side and it didnt stop the loud clicking noises coming from the upper left side of the glovebox. So I have already eliminated that this actuator is the problem.
Temperature Mode Valve Actuator Assembly labeled #8 on the GMpartscenter.net. Which shows on the diagram that they are two of these actuators. One on driver side and another on passenger side of the dash. I'm assuming one of these actuators is my problem if not both?. I'm also assuming these control the vents as well?
Thanks JamesM-ZO6 for your response. I do highly appreciate it greatly you making that post. The actuator you circled in your picture is labeled #8 Temperature Mode Valve Actuator Assembly on the GMpartscenter.net. I hope you replaced the other one on the passenger side dash as well while you had all your dash apart? Because they are two of these actuators. One on driver side and another on passenger side. Thanks a million. Where did you find the reference material to know how to pull the driver side dash apart? Again appreciate your time in advance..
Last edited by Allen650HP; May 11, 2025 at 03:20 PM.
No calibration required when replacing actuators, if the HVAC module is powered down, next time it's up it will sweep all the doors to find their position and your good.
Also please report back if mode actuator can be removed out the bottom I'm skeptical. As these cars age all these cheep plastic actuators will fail and would be good to know alternative to removing dash.
This is relieving to know. Highly appreciate your help and post. I figured as much. As everytime you open the door and shut it. You can hear the actuators resetting. Again thanks for your feedback
This is relieving to know. Highly appreciate your help and post. I figured as much. As everytime you open the door and shut it. You can hear the actuators resetting. Again thanks for your feedback
Im assuming your refering to #8 on GMpartscenter.net the
Temperature Mode Valve Actuator Assembly. Which they are two of them. One on driver side and another on passenger side area?
Well we getting ready to find out lol. As soon as i find the reference material for pulling the driver side dash area apart. Just in case i have to pull that side apart as well. Then im going to start with the passenger side dash area. Because thats where all the noise is coming from. I'll start pulling it apart until I trace it to where the noise is coming from. I already have partly pulled the passenger side dash apart some before. So I'm dreading it. But so far 15 torque bit. And 5mm 7mm tools is what was needed so far. I don't know if it will require any more tools beyond that besides plastic trim tools. But we cross that road when I come to it. I'll try to take pictures and add more reference material for this thread here. Hopefully it will help others that has had same issues and researched to only find very little information on this subject.
Reference #8 This is Temperature Mode Valve Actuator Assembly
Last edited by Allen650HP; May 11, 2025 at 04:07 PM.
I'm also going to insert these two valuable post here as well. Because they are important post. Since these post has been made. On the GMpartscenter.net website. They don't have any reference for #9 Which is the air inlet actuator,.The website doesn't even have number #9 at all. Idk if this part is out of stock? But it is one of many main actuators that are in the C7 corvette dash area. Number #7 & #8 does seam to be in stock on the website and can be ordered.
Mode Actuator ordered, $80 with tax, prices have gone up. I hope I can do the R&R over the course of 3-4 days, taking time upside down. I searched for 23201659 and found on Amazon ACDelco GM Original Equipment 15-74430 Heating and Air Conditioning Panel Mode Door Actuator
