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No heat on driver side I replaced temp blend door actuator?

Tiny
RACER2868
  • MEMBER
  • 2006 CADILLAC STS
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 23,569 MILES
I have an 06 sts v6 no heat on driver side I replaced temp blend door actuator and checked heater box for any broken blend doors but everything was ok while heater box is out I checked the heater core on a running car and both sides came up to temp at this point I am out of ideas any thing u would try?
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Monday, February 14th, 2011 AT 1:41 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Keep in mind that this could be an electrical issue.
If the actuator is not getting power, it will not activate.
So, check to see if there is power to the connector of that blend door actuator.

https://www.2carpros.com/articles/replace-blend-door-motor

I have attached the replacement procedure below. Take a look and see if you might have missed a step.

Please let me know if you have any questions.
Thank you.
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Wednesday, January 19th, 2022 AT 9:50 PM

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