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1990 Legacy Overheating
Posted 15 October 2003 - 12:12 PM
Posted 15 October 2003 - 01:28 PM
If you do the swap, the people at CCR are great to buy a rebuilt from.
Posted 15 October 2003 - 03:54 PM
Posted 15 October 2003 - 09:00 PM
Posted 16 October 2003 - 07:31 AM
Originally posted by crazyeric
i had a similar problem with my 90 legacy. does it only overheat when your driving it? if so try taking the thermostat out, it'll take a while to heat up but it wont overheat!
was the thermostat you had in there an OEM thermostat, or was it an aftermarket one you got at a parts store?
Posted 16 October 2003 - 10:13 AM
Posted 17 October 2003 - 09:51 AM
Posted 05 June 2005 - 11:07 PM
good luck and hope this might help you
Posted 06 June 2005 - 12:13 AM
I have a '90 AWD Legacy wagon with an overheating problem. After replacing the radiator and water pump it looks like it is a cracked head or bad head gasket. Is a head replacement a viable option for an eng w/165k miles on it? Anyone know where I can get a cheap head in the Seattle area?
Posted 14 November 2007 - 02:47 AM
Posted 14 November 2007 - 09:54 PM
Posted 15 November 2007 - 12:48 AM
It will be a problem in the heater bypass I had the problem in an old legacy and nothing would open the thermostat Try bypassing the heater and tell us if it is ok then Michael
These cars are getting old now and I 'll tell you if the heater core bypass check is not included you could be wasting a lot of money.If the thermostat is not opening and most of the air is out of the system and thermostat checks OK that is what it will be
If anyone is skeptical just try clamping a heater hose and see how long it takes for the fans to stay on
Posted 16 November 2007 - 12:16 PM
Posted 16 November 2007 - 01:49 PM
There is no heater core bypass on the first gen legacies. Coolant is always flowing through the heater core.
I call it the bypass circuit because it is bypassing the thermostat Might not be the right term but if the flow through the heater is not strong enough it will affect the opening of the thermostat That much I am sure about .Michael
It took us months to find the problem but the give away was that the hot return from the heater feeds directly on to the thermostat and these things rarely are not there for a purpose .when we had replaced everything in the cooling system and it still overheated we finally found the link I just think it is worth checking for .M
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