AC blend door calibration

Epplers

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I have a 2013 tahoe PPV and I keep having to roll temp seting to hot and back down to cold to get it to max cool. I have pulled the fuse and disconnected batteries. This works for a short period of time and then back to messing with temp controls to cold air. Any suggestions?
 

Brandon2489

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Mine does the same thing but only about 2 times a year. In my case the temp can not be changed or the mode to select defrost, feet etc... In my case the mode select actuator is at fault. To fix it I pull the HVAC battery fuse under the hood. So far it works when I have issues. I really need to stop being lazy and just replace it.
 

Joseph Garcia

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@swathdiver has some experience with these actuators. Do you have a quality scan/program tool like a Tech 2 to assist you and us in troubleshooting this issue?
 

swathdiver

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I have a 2013 tahoe PPV and I keep having to roll temp seting to hot and back down to cold to get it to max cool. I have pulled the fuse and disconnected batteries. This works for a short period of time and then back to messing with temp controls to cold air. Any suggestions?

@swathdiver has some experience with these actuators. Do you have a quality scan/program tool like a Tech 2 to assist you and us in troubleshooting this issue?

Might be the controller too. They only way to know without throwing parts at it is to put a Tech-2 on it and get the internal codes. If it is the controller, and it is electronic, it would have to programmed to your vehicle. I do not know if the manual one has to be programmed or not. If it is even bad. You can change out the actuators without doing this.

Seems like they are the wrong ones and installed "backwards".
 

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