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(1990 Subaru Legacy)
in Anchorage, AK on March 09, 2010
all the coolant is in the overflow reservoir. is the problem the thermostat?
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Popular Answer
on March 09, 2010
The system is pressurized so if the radiator cap won't hold the recommended pressure it will release it into the overflow tank, So start with a new cap but don't remove this when the engine is hot
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