Overheating

SUE SMITH2

MEMBER
1999 HONDA CIVIC
1.8L
4 CYL
AUTOMATIC
200 MILES

We have check all hose, replaced thermostat, water pump, head gasket. Heater core was removed due to plugged. So all was bypassed. I believe that has been everything that has been. Oh, also we flushed the radiator, due to someone who had car before we owned it had put some kind of stop leak in it and it was built up in side. After doing all this the car is still overheating. Can you think of anything to try?

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,779 POSTS

Welcome to 2CarPros.

Since there was a stop leak placed in the radiator, I question if the block is partially plugged. Have you tried flushing the engine block itself? Also, does it overheat at any speed? Is there evidence other than the gauge that it is overheating?

Let me know.

Joe

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Saturday, March 30th, 2019 AT 9:09 PM

SUE SMITH2

MEMBER
1 POST

On my question u ask for mileage on the Honda Civic LX it not 200 miles, the mileage is 200, thousand. Thank u for any help.

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Monday, April 1st, 2019 AT 9:53 AM

JACOBANDNICKOLAS

MECHANIC
109,779 POSTS

I would recommend flushing the engine block. Here is a link that will help:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Now, when you do it, remove the thermostat and remove both the upper and lower radiator hoses from the radiator. With the thermostat out, you can flush through the block.

If that doesn't help, I suggest checking for a bad head gasket or ignition timing issue.

Here is a link that will explain how to check the head gasket:

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

Let me know if that helps.

Joe

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Monday, April 1st, 2019 AT 5:22 PM