Engine cooling temp gauge stays at 160?

2021 CHEVROLET COLORADO
116,000 MILES • 4.3L • 4WD • MANUAL
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JOCOBUCK
  • MEMBER
  • 2 POSTS
Sometimes the temp gauge stays at 160, ac won't blow cold, fan stays on. Then sometimes the temp goes up to 200 and the engine makes a knock and the upper radiator hose will be extremely tight and I have to burp it at the reservoir.
May 9, 2026 at 2:03 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,051 POSTS
I blown head gasket can do this, or a bad engine coolant temperature sensor. I would follow this video for the test before doing the sensor.

https://www.youtube.com/watch?v=5zpNjYmmiYY&pp=0gcJCaMLAYcqIYzv

Let me know
Jul 31, 2026 at 7:24 PM
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