hvac issue

[bgbrobru]

Hello All, My ac turns from cold to hot while I'm driving and the heater turns from hot to cold. when I stop and restart the car it works for a while. I've read some of the posts on actuator issues but they don't address this specifically. It is the driver's side only. Before I put in a new actuator is there a way to analyze the controls? Thanks

 

[chauncey0337]

Welcome. Do you have the auto climate control? If so, does this happen when you're using the climate control?

 

[bgbrobru]

Hi I have a dual control panel for the front hvac, driver and passenger

---------- Post added at 12:19 PM ---------- Previous post was at 12:16 PM ----------

I didn't see the quick response from you. Thanks for any help.

---------- Post added at 12:23 PM ---------- Previous post was at 12:19 PM ----------

I do have auto feature on the controls but I typically just set the temp and location manually

 

[chauncey0337]

Since you have the DUAL climate control and your problem is on the DRIVER's side, it does make sense that one of the actuators is acting up. Do you know if it's been serviced or replaced before? Because I've read when you replace it, there is a relearn process that needs to be performed.

 

[bgbrobru]

has never been replaced. If it resets when I turn it off then on again could a total reset be in order?

 

[chauncey0337]

I guess it wouldn't hurt to try. I believe there's more than one actuator so I can't help you there. Once you remove the panel try adjusting hot/cold on driver side and see if you can tell which one it is. Here's a write up on how to change an actuator and how to recalibrate it.

 

[bgbrobru]

didn't get the write up unless I'm looking in the wrong place. This is a really busy site!!!

 

[chauncey0337]

Sorry, I totally forgot to add the link, lol. It shows how to replace one of the actuators and towards the bottom there are directions to recalibrate-
http://tahoeyukonforum.com/forum/showthread.php?t=15787&highlight=blend+door+actuator+calibrate