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Coolant always goes in the top of the radiator.
In Subarus the temp control for the heater does not control the coolant flow, just airflow past the heater core. If you get no heat, there is no coolant in the heater core -- either there is no coolant or it is not circulating.
The engine temp sensor on a Subaru 2.5 liter is located on top of the engine near the radiator output. It constantly monitors the coolant temperature and helps to vehicle adjust flow as needed.
put coolant into my over flow car was running hot and the coolant erupted like a volcano on the side of the over flow
True.
The presence of the valves usually restrict the coolant flow into the heater core.
It might be clogged, thus not allowing enough flow It means that the excess coolant is going where it is supposed to. The coolant expands when hot and goes to the over flow reservoir.
Heat will flow from the coolant to the air The coolant will absorb the heat from the building.
the thermostat
No. The water pump is the only coolant circulation device.
Heat will flow from the coolant to the air The coolant will absorb the heat from the building.
Heat will flow from the coolant to the air The coolant will absorb the heat from the building.