08-13 Auto Climate Controls

[Robert Foxworth]

My 2010 Sierra Crew Cab has the automatic climate controls and a problem that may be more common than I think. The temperature on the driver side doesn't warm up no matter the temp setting while the passenger side seems to work just fine.

I tried switching between Auto and Manual modes, doesn't help. I hear a click down by my feet which I assume is the blend door actuator for my side.

What is involved in changing the blend door actuator?

How do I know that's the problem and not the controller?

Why do the fail? Do the plastic gears break or the little motor burn up?

 

Any suggestions or diagrams of the heater box would be very helpful.

Thanks.

[jhplak325]

Try pulling the all the fuses for the HVAC system first, this would reset everything.

 

This worked on the 2009 Silverado that I had.

[intheburbs]

Try pulling the all the fuses for the HVAC system first, this would reset everything.

 

This worked on the 2009 Silverado that I had.

 

Wouldn't it be easier to just disconnect the battery ground cable?

 

Kinda like rebooting your computer. Disconnect battery power for 10-15 minutes, see if that resets the system.

[00Silverado4x4]

 

Wouldn't it be easier to just disconnect the battery ground cable?

 

Kinda like rebooting your computer. Disconnect battery power for 10-15 minutes, see if that resets the system.

This is what have tried with success on my truck.

[jhplak325]

Wouldn't it be easier to just disconnect the battery ground cable?

 

Kinda like rebooting your computer. Disconnect battery power for 10-15 minutes, see if that resets the system.

That is the other option, only difference is having to reset radio.