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Not overheating, pushing water out overflow?

Tiny
ROBERTFRALICK84
  • MEMBER
  • 2013 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 99,000 MILES
I have replaced the water pump, radiator, cooling fan assembly, fan sensor, thermostat and radiator cap. The car does not overheat but it over fills the overflow bottle and I lose fluid. I had bubbles with the radiator cap off and I thought it might be a head gasket, I put some head gasket repair in and then flushed it. The bubbles are gone but it still acts like it over heating. The temperature gauge does work.
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Tuesday, June 20th, 2023 AT 1:59 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Hi,

What you described does sound like a head gasket issue. It sounds like compressed air from one or more cylinders is leaking into the cooling system.

We need to perform a chemical test to see if exhaust gases are entering the cooling system. Here is a link that explains what to look for. If you page down to step 4, it explains how to perform the chemical test.

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

Try this and let me know what you find.

Take care,

Joe

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Tuesday, June 20th, 2023 AT 10:46 PM

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