Temperature gauge and AC

2008 GMC ENVOY
76,000 MILES • RWD • AUTOMATIC
Avatar
JANETHORTON
  • MEMBER
  • 1 POST
The temperature gauge stops working at the same time AC stops working.
ECM reset worked for a few miles and stopped.
Apr 4, 2014 at 3:45 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
Hello,

It sounds like you have a coolant temperature sensor that is out causing the computer to shut down the AC. Here is a guide to help you see what you are in for when changing the sensor out and the location of the sensor below:

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

Check out the diagrams (below). Please let us know what happens.

Cheers
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Apr 4, 2014 at 7:21 PM
Avatar
TURBOJAY
  • MEMBER
  • 2 POSTS
I got the sensor for $34.00 fixed it, thanks
Aug 25, 2018 at 6:58 PM
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 Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.