Engine running hot

2008 CHEVROLET IMPALA
162,015 MILES • 3.9L • V6 • 2WD • AUTOMATIC
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MVANN74
  • MEMBER
  • 65 POSTS
Car listed above has a police package. I've replaced the thermostat, water pump, radiator, radiator hoses, coolant temperature sensor, and added coolant. Still running hot. Can anyone please tell me how to solve this issue?
May 25, 2021 at 10:18 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
It sounds like you may have a blown head gasket. to be sure this guide can help confirm the issue:

https://www.2carpros.com/articles/engine-overheating-or-running-hot

and

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

If positive we have had good luck with blue devil head gasket sealer check out this video:

https://youtu.be/Xi41RFMP8Ow

Let us know what happens and please upload pictures or videos of the problem.

May 26, 2021 at 10:36 AM
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