Question about 1993 Subaru Legacy

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Overheating my 1993 subaru legacy is overheating and the radiator fans are not coming on. they do not turn on with the a/c on either. checked two fuses for sub and main fans and both are good.

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Is there power to the fan motor itself? Can you check with a VOM meter to see if you have power to the fan? Like a previous post, are they plugged in?

Posted on Sep 02, 2008

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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

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My 1996 subaru legacy outback has started overheating it comes up to temp and stays there for 6-7 miles and then goes up like a rocket. this started when i started using the heat. if I turn off the fan...


i had the same problem with my 1996 subaru legacy grand wagon,which is identical to yours.it had a cracked head,the gasket was fine.not cheap to get done but id get it done now before more serious damage is done.

Dec 04, 2010 | 1996 Subaru Legacy

3 Answers

Overheating radiator without leakage


I posted this in a different web sight I hope it helps.


Re: Overheating and blowing cold air
I have been a mechanic for 20 years. Your problem is the heater core is plugged. The cold water from the radiator blows directly at the thermostat keeping it closed even when you are overheating! BAD DESIGN!! If you look at the water flow charts in AllData you will understand. If you rev the motor to 3,000 rpm's the turbulent HOT water at the water pump impeller (near the thermostat) will reach the thermostat to open it and the car's temp will fall very fast to the correct temperature. If you remove the thermostat it will not overheat but will run way to cold. If you bypass (loop) the heater core it will not over heat.

The hot water that leaves the heater core returns to the engine at the thermostat. It is the only hot water introduced to the thermostat to keep it open and allow the water to flow from and to the radiator. I normally just back wash the heater core and get large chunks of rust flake out then its fixed. Back wash then froward wash repeatedly many times. Also flush out the motor so you don't re plug the heater core. I hope you have now blown the head gaskets or cracked a head yet. Make sure to run the proper coolant in the car so you don't promote more rust flakes. And bleed the air out as mentioned in detail by other posters.

Nobody knows this little secret. Not even Subaru mechanics at the dealer, no TSB (Technical Service Bulletins a special note after the fact to mechanics). After days and days of trouble shooting a 1993 Subaru Impreza (2.0?) I looked at the water flow chart and then it was clear what was happening. This phantom overheating problem stumps the best mechanics and sends many Subarus to the crusher.

http://www.subaruoutback.org/forums/...threadid=17264

Jan 16, 2010 | 1990 Subaru Legacy

1 Answer

Overheating


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.

Jun 03, 2009 | 1990 Subaru Legacy

1 Answer

Intermittent overheating 96 Subaru Legacy.


if it overheats while your in motion then u can eliminate your fans, as your problem. and do you mean 5-50 thousand miles? id chech your coolant for hc contamination. most likley a head gasket

Mar 15, 2009 | 1999 Subaru Legacy

1 Answer

90 Subaru Legacy with no spark


Have you checked the ignition fuses, or checked for power to your ignition module? You have everything else covered! I hope these ideas will get you running. Best wishes.

Jan 20, 2009 | 1993 Subaru Legacy

1 Answer

Overheating 93 Subaru Legacy


water pump could be bad again. if the seal is out lets air in around pump propeller and it won't move water and it over heats. its a lot of work but you can fix it your self

Dec 16, 2008 | 1993 Subaru Legacy

2 Answers

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Have you checked if you have ignition on the spark plugs leads? Is petrol coming to the injectors?

Aug 24, 2008 | 1993 Subaru Legacy

1 Answer

2000 Subaru Legacy overheating when airconditioning is used when in traffic?


I would really recommend buying the Haynes/Chilton aftermarket service manual for your car.
It can answer questions much faster and probably more reliably than many who might respond.
They are under $20 and available at any of the chain auto parts stores.

Jun 25, 2008 | 2000 Subaru Legacy

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