2009 Tahoe A/C problem
CF Beginner
Joined: Jul 2014
Posts: 4
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When I'm doing this where should the controls for the a/c be set at? Should I have the fan speed *** off? Thank you for your help I greatly appreciate it!!
Last edited by Krystaraye; Jul 12, 2014 at 3:55 PM. Reason: Spelling
CF Beginner
Joined: Feb 2022
Posts: 1
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There are two possible solutions, 1) the blend door acutator(s) may need to be reset and relearned 2) the blend door actuator for the drivers side is defective and needs to be replaced...
The reason you get warm are is not due to an AC issue but the blend door, the blend doors are what move to allow cold air to be circulated or hot air to be circulated....
The AC only works when you turn it on, however the heater works anytime the engine is running, depending on the position of the blend door you get cold air or hot air...
Sounds like you are getting warm air mixed with your cold air due to the blend door being in the wrong position.....
To try the relearn procedure do the following....
1. Removed the 10amp HVAC fuse located in the underhood fuse block for 10 seconds...
2. Re-install the fuse
3. Start the vehicle, DO NOT touch or adjust the HVAC settings for 1 full minute while the system goes through its learn procedure....
4. Once the full minute is done you can check the settings of the blend doors by setting primary/drivers side to cold or hot....
If this does not do the trick, most likely the blend door actuator is bad and will need to be replaced...
The reason you get warm are is not due to an AC issue but the blend door, the blend doors are what move to allow cold air to be circulated or hot air to be circulated....
The AC only works when you turn it on, however the heater works anytime the engine is running, depending on the position of the blend door you get cold air or hot air...
Sounds like you are getting warm air mixed with your cold air due to the blend door being in the wrong position.....
To try the relearn procedure do the following....
1. Removed the 10amp HVAC fuse located in the underhood fuse block for 10 seconds...
2. Re-install the fuse
3. Start the vehicle, DO NOT touch or adjust the HVAC settings for 1 full minute while the system goes through its learn procedure....
4. Once the full minute is done you can check the settings of the blend doors by setting primary/drivers side to cold or hot....
If this does not do the trick, most likely the blend door actuator is bad and will need to be replaced...
CF Pro Member
Joined: Dec 2019
Posts: 992
Likes: 169
Try disconnecting the battery again for an hour or two. A full scan of the HVAC system may be needed also. A regular P code scan tool will not read other onboard code families to see what the system modules are seeing.
My '11 LTZ has 41 onboard modules that talk to the onboard communication system.
My '11 LTZ has 41 onboard modules that talk to the onboard communication system.
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2009, ac, accuator, actuator, air, air outlet duct, blend door, chev, chevrolet, chevy, conditioning, drivers, knee bolster, problem, problems, remove, replacement, side, suburban, tahoe, working
