2007 Gmc Sierra Dual Climate Control Issue

[tracker100]

Hi Guys, great forum, I use it all the time, decide to sign up to ask my question.

I am having a problem on my truck where the climate control is not working.

For example one day I had the air conditioning turned and everything was fine on the driver side however
the passanger side had hot air blowing out of it. I had the temperature set to 18 deg C on both sides. Tried lowering temperature
moving the fan to defrost etc but could not get it to quit?

Any ideas what that might be.

[ChevyTech77]

Could be a temperature door actuator, an issue with the wiring for that actuator or an hvac controller issue.

Is this same issue always present or just intermittently?

[tracker100]

[quote name='ChevyTech77' post='1209614' date='Oct 12 2011, 12:05 PM']Could be a temperature door actuator, an issue with the wiring for that actuator or an hvac controller issue.

Is this same issue always present or just intermittently?[/quote]


actually intermittent thanks for the fast response

[tracker100]

How do you get at these door actuators?