Overheating issue

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Andrewc_21
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Location: Seattle, WA

Overheating issue

Post by Andrewc_21 »

My 93 wagon has started to overheat while driving at slower speeds. When it is on the freeway going 60+ the temp stays just below the middle, but when I slow down the temp needle starts to creep up. When this happened, I pulled over to let it cool down and check the coolant reservoir to find it all the way up to the brim, but after 2 min or so it goes back down to the normal level. This only really happens after freeway drives though. There isn't an oily sheen on top of the coolant so I don't think it is the head gaskets and both fans are working normally, anyone have an idea on whats happening? Any info would be much appreciated.
chanley2010
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Re: Overheating issue

Post by chanley2010 »

You say the fans are working properly? That would be the first thing i would look at because at highway spped its being more air cooled then at lower speeds. Is this a manual or and auto? Possibly a sticky thermostat not fully opening? Any major work done to engine?
Andrewc_21
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Location: Seattle, WA

Re: Overheating issue

Post by Andrewc_21 »

Other than the radiator I replaced about 10k miles ago, no major work I know of has been done to the engine/cooling system. The car is an auto. I haven't considered the thermostat though ill look into that.
Andrewc_21
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Joined: Sun Aug 23, 2015 1:26 am
Location: Seattle, WA

Re: Overheating issue

Post by Andrewc_21 »

So I made the trip to the dealership to get a subaru oem thermostat and gasket, installed that and flushed and burped the air bubbles out of the cooling system. Tried as hard as I could to overheat the engine and thankfully, was unsuccessful! Guess that fixed it thanks a ton for the tip
chanley2010
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Re: Overheating issue

Post by chanley2010 »

Hell yeah! Glad to hear it worked out for ya
Legacy777
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Re: Overheating issue

Post by Legacy777 »

Yeah, it sounds like you had air bubbles and/or a non-Subaru t-stat.
Josh

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