Driver side blowing cool air on heat and warm on A/C

2002 CHEVROLET TRAILBLAZER
67,284 MILES • 4WD • AUTOMATIC
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20GRANDWOOD
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  • 1 POST
Everything was working fine then I noticed while trying to change the temperature of the air flow it never changed temperatures, but the passenger side works fine.
Sep 20, 2019 at 7:06 AM
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DANNY L
  • CERTIFIED EXPERT
  • 5,648 POSTS
Hello, I'm Danny.

It sounds like you may be having a problem with the blend door actuator. Here is a tutorial showing what is involved for its replacement:

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

Before I send you more detailed step-by-step instructions I will need to know from you if it is an automatic or manual control system.Hope this helps and thanks for using 2CarPros.

Danny-
Sep 20, 2019 at 4:16 PM