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Dual Zone temperature problem - 2012 Overland

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2012 overland
2K views 3 replies 3 participants last post by  MR291 
#1 ·
2012 Overland 5.7L. My HVAC started acting up this week. The driver side works well and the A/C is cold. The passenger side only blows warm. I can not sync the two. I checked the freon levels and that is fine. Is this possibly a door issue like earlier generations?

Appreciate any suggestions and where and what to look for.

Thanks.
 
#2 ·
Hi MR291

I experienced the same issue and found it to be the blend doors in HVAC unit. It is a common fault and can be easily sorted.
You can buy blend doors of eBay, and there are a few users showing installation instructions on YouTube.

I have had this issue for over a year and with winter drawing in thought it was time to get it sorted.

It is really easy to sort out, and you can save your self a lot of money by doing it yourself.
 
#3 ·
I would put my money on the sacrificial gear between the door actuator itself and the blend door post. Have seen quite a few of these things grenade. Being it's the passenger side, the repair can be performed by removing the glove box assembly and not having to remove the entire dash.
 
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