Running hot

2005 CHEVROLET IMPALA
178,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DUSTIN FERGUSON
  • MEMBER
  • 1 POST
I have already replaced the thermostat on my car but now the car is still running hot on the meter and it is also smoking and spitting radiator fluids. But it is smoking and hissing under the air filter box.
Nov 12, 2018 at 8:28 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good morning.

It sounds like you may have a damaged head gasket from the overheating.

You may have repaired the reason for the overheating by replacing the thermostat but the failed head gasket is a result of the overheating.

You can get a chemical kit at a parts store and follow the instructions to verify or have a shop do a leak down test on each cylinder to find the exact area of the leak.

Roy

https://www.2carpros.com/articles/head-gasket-blown-test
Nov 13, 2018 at 4:32 AM
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