All replacement thermostats keep sticking closed causing the engine to run hot?

2005 CHEVROLET EQUINOX
165,000 MILES • 3.4L • V6 • 2WD
Avatar
FRANK38061
  • MEMBER
  • 2 POSTS
I replaced the coolant system parts that were bad; the water pump, radiator, thermostat, reservoir cap, temperature coolant sensor, and bled the system. However, I drove the car for 1 hour and the thermostat stuck causing the car to run hot. The thermostat keeps getting stuck no matter how many news one I put in there they get stuck and causing it to run hot.
Aug 1, 2023 at 7:05 AM
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.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Yep, this happens when the handbasket blows because it forces exhaust into the system which the thermostat will not react to. To confirm the issue please go over these guides:

https://www.2carpros.com/articles/recognizing-the-symptoms-understanding-a-blown-head-gasket-in-your-vehicle

and

https://www.2carpros.com/articles/head-gasket-blown-test

Please go over these guides and get back to us.

Aug 1, 2023 at 1:40 PM
Advertisement