Overheats after ten minutes of driving

1987 HONDA ACCORD
280,000 MILES • 4 CYL • 2WD • AUTOMATIC
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WAREEM DEBNAM
  • MEMBER
  • 1 POST
I changed my radiator and replaced my oil pan because it had a big crack. Now the car overheats after ten minutes driving, My mechanic says it's a blown head gasket. I put some Kseal in it but it still overheats.What can I do now?
Jun 10, 2019 at 12:44 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Welcome to 2CarPros.

First, we need to confirm it is the head gasket. Here is a link that shows how it is done:

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

Follow that link and let me know the results. Also, was the thermostat replaced? If not, here is a link that shows in general how one is replaced:

https://www.2carpros.com/articles/how-an-engine-thermostat-works

https://www.2carpros.com/articles/replace-thermostat

I am not familiar with Kseal. Is that something that is added to the cooling system? Is there any chance it could have plugged things?

I do have another question. Does it overheat when driving at highway speeds or only in stop and go traffic? If only in traffic, is the cooling fan coming on?

Let me know.

Joe
Jun 10, 2019 at 2:47 PM
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