Inconsistent driver side vent temperature

75,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
Avatar
KYLECHINN1986
  • MEMBER
  • 1 POST
I have dual zone climate control. Recently replaced the compressor, condenser, evaporator, and expansion valve. The system was working well for a couple of months. Now, the driver side vents only blow ambient temperature, unless heat is turned on. The passenger side works perfectly, whether blowing ice cold on A/C, or furnace hot on heat. The only time I can detect any temperature change in the driver side, however, is when maxing out the heater. When the climate control is set less that 85 degrees, the driver side air does not change temperature at all.
Jul 13, 2021 at 3:34 AM
Avatar
SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

If your car has dual zone climate control, it does sounds like a possible faulty blend door actuator.

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

I have attached the testing procedure for the driver side blend door actuator/motor, also the replacement instruction.

Please let me know if you have any questions.

Thank you.
Jul 13, 2021 at 3:50 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle