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Climate control not working properly

Tiny
DON BELDHAM
  • MEMBER
  • 2008 SUZUKI XL7
  • 3.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 126,000 MILES
The go from A/C to heat. Can't control the temperature. When it goes to heat if I pull the fuse out for a time the A/C comes back on. I had put a new mixer module there two plugin sensors look like a small circuit board not sure what they do. Please help.
Don
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Tuesday, June 15th, 2021 AT 5:01 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More than likely this is a blend door issue if you have already changed the control module.

Sometimes these things start losing their place and will move around to where they want to go. Do you hear any clicking or clunking when the temperature changes?

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

To confirm this we need to remove the actuator and check the voltage when this is acting up. If the voltage is remaining consistent then the actuator is the issue.

Below is the process from the manual that will help with checking and changing this if it proves out. Let me know if you have questions. Thanks
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Wednesday, June 16th, 2021 AT 5:11 PM

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