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1996 Subaru Legacy Outback overheating
Started overheating (white smoke out the tail etc, pulled over immediately - no hot air coming out of the heater when I put the heat all the way up to help), had it taken to a local guy He said it was heads. So I figure if i'm going to have to deal with that i'll get a converted 2.2L in and have it towed to a guy my family knows who I trust to do it and who has been working on subaru's exclusively for about 15-20 years.
He tells me he put it under pressure testing (repeatedly) and has found no evidence of a head gasket being out. He noticed leakage from the radiator hose and went and replaced that. He tested it for several days, driving it around - no problems - took it up to 45-55 maybe 60.
I get up there to pick it up and take it onto the highway and get it up to 75/80mph - and it's fine. However once I slowed back down and made a stop I noticed coolant leaking out under the car (a considerable amount - it looked like it happened suddenly). Sure enough when I started it back up it it immediately started overheating.
He seems to think the fluid isn't going through the radiator for some reason once it gets up to speed. (Pressure thing perhaps? I'm uneducated on how precisely this works). Currently he's hoping it's some sort of block and has a solvent or something along those lines running through the system and will flush it tomorrow to see if that helps to clear things up.
Any help/advice/suggestions from anyone with similiar problems? Sorry this is such a long post but I wanted to give as much information as I could on the subject.