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90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 3:12 am
by Peanutibutter
My 90 legacy heats up way to fast and I don't know if the thermtat is in backwards or not. The guy I got it from said he replaced it. And the sensor dosnt work and there is anti-freeze in the radiator. I don't know whats going on!!
Re: 90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 3:23 am
by mike-tracy
It is very important to use only the subaru OEM thermostat, as aftermarket ones have documented serious cooling problems on our cars. If your temp gauge on the dash is not working, that probably means the temp sensor(s) on the aluminum pipe under the intake manifold is bad. The temp sensor for the gauge cluster has a single blade connector, while the one for the ecu is next to it and has a 2-wire plug connector.
I highly recommend finding out if the previous owner used a factory Subaru thermostat, and if not, replacing it with one immediately. 2ndly, the gauge temp sensor should be replaced as well. Note that the factory thermostat only fits in one way.
Re: 90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 3:29 am
by Peanutibutter
How can I tell the thermostat is after market?? And if so where can I find a cheap but good one and the same for the temp sensor
Re: 90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 9:58 pm
by Legacy777
This is what the stock Subaru t-stat looks like. It is deeper on the back end compared to most aftermarket ones.
http://main.experiencetherave.com/subar ... P_4799.JPG
There are some more pictures on this page
http://main.experiencetherave.com/subar ... age_02.htm
As for getting parts for a reasonable price, I'd suggest checking out
www.subarugenuineparts.com
Re: 90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 10:45 pm
by Peanutibutter
I hope it fixes it thanks
Re: 90 legacy heating up to fast??
Posted: Sun Jan 13, 2013 10:48 pm
by rallyak
here another pic with a subaru one and aftermarket one, the one on the right never opened.

Re: 90 legacy heating up to fast??
Posted: Mon Jan 14, 2013 3:41 am
by Peanutibutter
witch one is the subaru one and aftermarket one??
Re: 90 legacy heating up to fast??
Posted: Mon Jan 14, 2013 3:44 am
by Legacy777
Subaru one is on the left.