2005 GMC Suburban Passanger / Driver not getting same temp

2005 GMC SUBURBAN
101,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
CREYES
  • MEMBER
  • 1 POST
Occasionally while driving with the air-conditioner on, the driver side front vents will begin blowing hot air, while all other vents are blowing cold air. To correct the flow of air, I can turn off the vehicle and re-start and the cold air then flows on both sides. It does not happen all the time and does not seem to be related to the distance driven.

Thanks
Sep 14, 2010 at 2:45 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
The individual temps are controlled by electric motors called actuators. These actuators have potentiometer in them that feed position info back to the control head. It may be having a problem with the signal back but it's going to requir the use of a Tech2 scan tool to be able to diagnose it properly.
Sep 14, 2010 at 3:22 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
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.

Ask a new question

Frequently Asked Problems for This Vehicle