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Overheating

Tiny
CIVI MAN
  • MEMBER
  • 2000 HONDA CIVIC
  • 150,000 MILES
Hello, two days ago my car has been overheating. I picked up a new thermostat and out it in. I have no heat at all. Still gets hot, coolant was bubbling from over tank but when I pushed down on the radiator cap it stopped, but soon as I let go of it it started again. Do you think I need a new cap? Other then that it runs great.
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Saturday, December 22nd, 2018 AT 2:55 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Yes, it could be the cap.

My concern is the bubbling. it may have a damaged head gasket and it is leaking compression into the cooling system. that would also explain the no heat as well.

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

Roy
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Saturday, December 22nd, 2018 AT 3:41 PM
Tiny
ALEX19899
  • MEMBER
  • 171 POSTS
My honda civic had the same issue. I had to replace the head gasket unfortunately.
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Tuesday, January 8th, 2019 AT 8:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Before assuming a head gasket, replace the cap and re test.

Then if it still does it you will need to get a leak down test done to confirm the gasket is leaking. Then you can feel confident that is the issue without guessing.

Roy
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Wednesday, January 9th, 2019 AT 3:33 AM

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