Question about 1990 Subaru Legacy

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Overheating 90 subaru legacy L i have replaced the thermostat and radiator cap and di a radiator flush and it still over heats i need help

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  • Anonymous Mar 28, 2014

    coolant is coming back out the radiator cap.have flushed engine coolant and topped back up to bleed air out



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Have you checked to see if the radiator fan works? And have you checked to see if the water pump works? Two very important items key to overheating.

Posted on Jun 03, 2009


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2001 subaru legacy overheating

Well it sounds like you have covered most of the bases.
One thing that could cause overheating is a restriction in the exhaust.
Do you know if the radiator fan is coming on when the engine reaches 220 degrees ?
How long can you drive it before it starts overheating, and does it boil over when it does ?

Jul 26, 2012 | 2001 Subaru Legacy

1 Answer

90 legacy, thermostat keeps showing over heating but there is coolant in reservoir and the engine doesn't seem to be over heating.

hi it could be a faulty water temp sensor, however if the car was overheating you would notice as it would be gurgling or steaming in the engine bay somewhere, it may also be a sick water pump or cracked radiator

Mar 18, 2011 | 1990 Subaru Legacy

1 Answer

The car is over heating i put new thermostat

On my 1998 subaru legacy outback limited I replaced the thermostat and did a radiator flush and fill and it overheated when I tested it. It basically overheated because there was air in the system. I relieved it by running the car and partially unscrewing the black plastic relief screw on the top left of the radiator(looking at it from the front of the car) until it stopped hissing and fluid started coming out then I screwed it back tight and I've never had a problem since. I think subarus are pretty fussy with this because my mechanic even missed it when they did the head gaskets.

Feb 06, 2011 | 1998 Subaru Legacy

1 Answer

My 1999 subaru legacy runs hot. I replaced the thermostat twice with no results. I noticed that the lower radiator hose is cool to touch. I removed the thermostat completly and the car runs fine but a...

you probably have a blockage in the radiator cooling tubes, try flushing it with a commercial radiator flush, or replace the radiator-at 133,000 miles, it really doesn't owe you a thing.

Dec 28, 2010 | 1997 Subaru Legacy

2 Answers

90 legacy, started overheating but was blowing cool air out of the heater even as the needle was pegged. Some fluid in reservoir, top radiator hose felt like it was under a lot of pressure.

Two things would cause this

There is a slow leak and the radiator is low on fluid

Let the vehicle cool down completely and then check the level in the radiator. I bet its pretty low. Top off the radiator with a 50/50 mix of coolant and water. start the vehicle and let it warm up with out the radiator cap on. Keep adding fluid as necessary. While waiting for it to warm up check around for any abvious coolant leaks. Things like hoses, radiator seams, water pump, water inlet/outlet gaskets. If no leaks are found it may be necessary to pressure test the cooling system and even then it might be a slow leak that only occurs when the vehicle is cold.

If the radiator is full than I would suspect that water pump is no longer working or creating enough flow. If the thermostat where stuck you would still get heat. If the water pump is not circulating coolant than you would get no heat and the car would overheat.

Nov 11, 2010 | 1990 Subaru Legacy

1 Answer

My 92' subaru legacy is over heating and stalling when stoped?

Have the radiator flushed and replace the thermostat.

Apr 25, 2010 | 1992 Subaru Legacy

3 Answers

90 subaru legacy overheats, wheres the thrmostat

When a car overheats it's rarely the thermostat. They just don't go bad that often. If it overheats when you idle a lot, it's the fan and with electric fans, it's almost always the fan motor. But to find the thermostat, follow the top radiator hose to the engine and there it is.

Aug 01, 2009 | 1990 Subaru Legacy

1 Answer

'90 Subaru Legacy overheating....

cool air and overheating point to low coolant level. Do you have a bleeder valve near the thermostat? You may have air trapped in the system. If no air trapped, the radiator may be plugged up not allowing proper circulation of coolant.

Mar 24, 2009 | 1997 Subaru Legacy

2 Answers

90 Subaru Legacy overheating

1988 subaru clean out radiator for summer diving

Mar 14, 2009 | 1990 Subaru Legacy

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