I have a 2006 GMC Sierra that driver side won't change to cold.

Asked by dbmcknghtd Jun 03, 2019 at 05:48 PM about the 2006 GMC Sierra 1500 SLE1 6.5 ft. 4WD

Question type: Maintenance & Repair

I purchased a new blend door reset it and still the drivers side stays hot while
passenger side is ice cold. Than I took the actuator out and manually turned the
drivers to cold but it moves back to hot once I turn my truck off. This is the
second blend door actuator I put in an reprogrammed.  Is there another
actuator that is  moving  that I'm not finding?

2 Answers

GuruS89Y3 answered 4 years ago

This happened to my 05 Sierra. I own a body shop and our guys fiddled with it and it started working on drivers side. Not sure what they did but now I'm thinking it will repeat.

Mark helpful

dbmcknghtd answered 4 years ago

I did reinstall actuator and its working for now. I know it will stop working because it only last until I switch it to heat in fall!

Mark helpful

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