over heating

[fear_no_evo]

Ok my forister ican driv it all day in the city and no problems as soon as I get on the highway it over heats but cools down at red lights its so ass backwerds any 1 got any thoughts

[pinacup7]

First things first is pressure test the cooling system and make sure it is holding a vaccum. Also check to make sure your fans are working and your radiator shroud is intact

[05OCsrt-4]

95% sure its your head gasket, does your coolant smell like sulphur?

[OutToWinPAHC]

Im guessing its rpm related, since in the city your stap and go your not running the motor as much as on the highway. System, I would first check for steamy exhuast (smells sweet) and intermix (milky or greenish oil), make sure fans are operating. If thats ok I would buy new T stat, neck gasket and rtv, drain fill and bleed.

Is the overflow or radiator low at all?

[fear_no_evo]

well it wasent the head gasget it was mad air in it i jut put new hoses on it and never bled a subaru b4 so i did it rong but i found it out how to and its cool now