Keeps running hot, I've replaced the water pump and cleaned the radiator?

Tiny
MARKTHOMPSON
  • MEMBER
  • 2001 CHEVROLET S-10
  • 134,258 MILES
My S10 keeps running hot, I've replaced the water pump and cleaned the radiator. I put coolant in the reservoir and when it runs hot it all drains out somewhere, it stays empty more than it stays full. I've checked for leaks and found none. Have done pressurized test on engine and radiator. Do you have any ideas on whats causing this?
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Wednesday, August 24th, 2011 AT 11:01 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Unfortunately, the most likely cause of all these is due to a faulty head gasket.

Here is a guide that we need to use in order to run through this info:

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

Also, even if you don't have some of these signs then we need to perform the chemical test or at the very least, we need to check compression just to see if there are two low cylinders. If there is, then this is another sign of a head gasket issue.

Here is a guide that will help with this:

https://www.2carpros.com/articles/how-to-test-engine-compression

However, I suspect if we use the chemical as shown in the previous guide it will show that this is the issue.

Please run through this info and let us know what you find with this, and we can go from there.

Thanks
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Thursday, December 16th, 2021 AT 5:47 PM

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