A/C actuator problem with a twist
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Joined: May 2005
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From: Friendswood Texas
A/C actuator problem with a twist
I have a 2000 coupe with 135,000 miles.
Like many folks, I've had a problem with the left and right a/c actuators. When in a/c mode, air is not flowing through the correct registers. In fact, no air is coming out anywhere, but the blower is working and you can feel air escaping from around the lower dash housing. It's throwing code B0367 which is "Right Actuator Feedback Open." I was able to cure the problem three or four times by pulling fuse #27 for over 60 seconds, then replacing it. That no longer helps.
Here's the twist. I have automatic climate control and when I set it to the lowest temp (60 degrees), air comes out of the proper registers with the fan at full speed. (I can turn the fan down and it still works.) As soon as I set a higher temperature, the problem returns.
But for the "twist" and the right side only code, I would have thought that my actuator problem was the same as those many others have experienced. Obviously, something is different.
Has anyone seen this problem?
Thanks,
Chas.
Like many folks, I've had a problem with the left and right a/c actuators. When in a/c mode, air is not flowing through the correct registers. In fact, no air is coming out anywhere, but the blower is working and you can feel air escaping from around the lower dash housing. It's throwing code B0367 which is "Right Actuator Feedback Open." I was able to cure the problem three or four times by pulling fuse #27 for over 60 seconds, then replacing it. That no longer helps.
Here's the twist. I have automatic climate control and when I set it to the lowest temp (60 degrees), air comes out of the proper registers with the fan at full speed. (I can turn the fan down and it still works.) As soon as I set a higher temperature, the problem returns.
But for the "twist" and the right side only code, I would have thought that my actuator problem was the same as those many others have experienced. Obviously, something is different.
Has anyone seen this problem?
Thanks,
Chas.
Last edited by Charles L. Cotton; Oct 17, 2015 at 03:39 PM.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Vacuum controls how the air is distributed. The electric controled Actuators move to create the temperature that was selected. Of course the Dual control head unit dictates both.
Normally when it is vacuum it causes air to come out of the wrong locations, not none at all.
Not sure how you want to diagnosis at the moment but I am wondering if you have an issue with the actual Dual control head unit also.
If you look at B0367 it can be several things including the actual actuator or the head unit.
You can let me know where you would like to try and start and I can provide FSM guidance and some DIY Threads.
Just so you have B0367, here it is.
https://www.dropbox.com/s/twwpokxtfn...B0367.pdf?dl=0
Mr. Sam
Normally when it is vacuum it causes air to come out of the wrong locations, not none at all.
Not sure how you want to diagnosis at the moment but I am wondering if you have an issue with the actual Dual control head unit also.
If you look at B0367 it can be several things including the actual actuator or the head unit.
You can let me know where you would like to try and start and I can provide FSM guidance and some DIY Threads.
Just so you have B0367, here it is.
https://www.dropbox.com/s/twwpokxtfn...B0367.pdf?dl=0
Mr. Sam
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Advanced
Joined: May 2005
Posts: 65
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From: Friendswood Texas
Thanks for the information and the link!
I admit that I don't know where to start. The fact that I can get airflow through the correct registers when the temp is set to maximum cooling (60 degrees) makes me think it's the dual control head, rather than a vacuum problem. Would you agree?
If it is the control head, then I don't know if that's reparable. I've had it out once to fix the cold solder joints on the resisters that caused the dim readout problem. (The fact that the problem was corrected three or four times by pulling fuse #27 is also puzzling.)
Thanks again.
Chas.
I admit that I don't know where to start. The fact that I can get airflow through the correct registers when the temp is set to maximum cooling (60 degrees) makes me think it's the dual control head, rather than a vacuum problem. Would you agree?
If it is the control head, then I don't know if that's reparable. I've had it out once to fix the cold solder joints on the resisters that caused the dim readout problem. (The fact that the problem was corrected three or four times by pulling fuse #27 is also puzzling.)
Thanks again.
Chas.
Vacuum controls how the air is distributed. The electric controled Actuators move to create the temperature that was selected. Of course the Dual control head unit dictates both.
Normally when it is vacuum it causes air to come out of the wrong locations, not none at all.
Not sure how you want to diagnosis at the moment but I am wondering if you have an issue with the actual Dual control head unit also.
If you look at B0367 it can be several things including the actual actuator or the head unit.
You can let me know where you would like to try and start and I can provide FSM guidance and some DIY Threads.
Just so you have B0367, here it is.
https://www.dropbox.com/s/twwpokxtfn...B0367.pdf?dl=0
Mr. Sam
Normally when it is vacuum it causes air to come out of the wrong locations, not none at all.
Not sure how you want to diagnosis at the moment but I am wondering if you have an issue with the actual Dual control head unit also.
If you look at B0367 it can be several things including the actual actuator or the head unit.
You can let me know where you would like to try and start and I can provide FSM guidance and some DIY Threads.
Just so you have B0367, here it is.
https://www.dropbox.com/s/twwpokxtfn...B0367.pdf?dl=0
Mr. Sam
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Yes, I am leaning to the head unit. Wish you were closer I would swap mine out with yours since I have my console out right now.
Swapping it out is easier than pulling the dash.
If you want to get a unit I would recommend Marc at VetteNuts.net. Great Forum vendor here. If that does not resolve it we can find the answer and you still have a good unit to sell or keep.
Doing the diagnostics means you need to have some basic knowledge of measuring voltage and resistance with a Multimeter.
Mr. Sam
Swapping it out is easier than pulling the dash.
If you want to get a unit I would recommend Marc at VetteNuts.net. Great Forum vendor here. If that does not resolve it we can find the answer and you still have a good unit to sell or keep.
Doing the diagnostics means you need to have some basic knowledge of measuring voltage and resistance with a Multimeter.
Mr. Sam
Supporting Vendor
Joined: May 2010
Posts: 6,819
Likes: 235
From: Bell Buckle, TN
St. Jude Donor '11
It sounds like the head unit. We see this all the time when the head unit does not send the signal to the actuator. We just finished repairing a nice unit so there is no more dim issues.
Here is a link to order: http://www.vettenuts.net/index.php?l...ct_detail&p=68
Here is a link to order: http://www.vettenuts.net/index.php?l...ct_detail&p=68
