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12-04-2013
I have a grand prix with the dual zone digital climate control, and Im able to control the temp but not where it comes out. I can hear the servo's in the dash going back and forth 24/7, even if I turn it off. Im pretty sure there not susposed to run all the time like that, do you guys have any idea?
12-04-2013
I want to say this sounds like a blender door actuator issue, but I'm not positive on that.
Originally Posted by W-Body Store
12-04-2013
Check the vacuum house that controls them under the hood
12-04-2013
Do they still run off vacuum if it has the digital controller? I know my 90 bonnie ran them off vacuum
12-05-2013
What year is the car in question?
Originally Posted by W-Body Store
12-05-2013
They still use vacuum up to a certain year
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