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1997 Subaru Legacy Repair Question


Topics covered: Thermostat, Coolant, Engine.
Mileage: 165,417 miles.

Asked on December 1, 2010

Subaru overheat

97 subaru legacy overheat issue, has had thermostat, waterpump, radiator, and headgaskets! Is the motor itself bad?
Avatar Asked by jgeear

Answer

Replied on December 1, 2010


You have replaced almost all components related to the cooling system for the engine. The motor itself does not overheat unless something is wrong.

When does the overheating occurs?
Are the cooling fans working correctly?
After the repairs, do you have coolant losses issues?

Tiny Answered by KHLow2008 (expert)
39,932 answers provided
Replied on December 1, 2010

Yes the fans are working, and yes after the overheat its low due to (i presume) exploding out the rad. cap. (also new)

Tiny Response from jgeear
1 question asked
Replied on December 1, 2010

Oh, it happens with around town driving

Tiny Response from jgeear
1 question asked

Replied on December 1, 2010

If the pressure is hig causing coolant to be pushed out to the recovery tank, the head gasket job was not done correctly and it could also be due to warpage of engine block surface and requires refacing or replacement.

Was the cylinder head tested for flatness or refaced?
Was it pressure tested for leaks?

Tiny Answered by KHLow2008 (expert)
39,932 answers provided
Replied on December 1, 2010

I found a faulty thermostat, thanks for getting me to double check stuff. Some aftermarket components are just plain junk!

Tiny Response from jgeear
1 question asked
Replied on December 2, 2010

Not all new parts are good. Even OEM parts are known to fail and that is always the worst because if you do not backtrack and review all the component, you are going to waste a lot of time and money.

Glad to know you have fixed the problem.

Have a nice day.

Tiny Answered by KHLow2008 (expert)
39,932 answers provided

Replied on April 14, 2013

always boil test your thermostat by outting it in a boiling pot of water too make sure the thermostat opens up and is working correctly,

Tiny Answered by bocard80
1 question asked