Joined
·
22,837 Posts
First off don't run the car hot or you might as well start looking for a new car.
No heat from the heater means your lacking coolant or coolant flow in the system. Are you adding coolant to the car? If yes then you probably have the external HG leak which you can spot by looking under the car, driver side from just behind the front wheel - looking forward and to the center you can see the back bottom corner of the engine driver side. This is where the leaky HG is spotted right after running the car you will see coolant dripping off the engine block onto the hot exhaust.
If you don't see any coolant dripping and your not adding coolant to the system - then your issue could be a fouled up radiator - a thermostat that is not working correctly etc. Only USE Subaru tstats!!! The cheap parts store thermostats will cause your car to over heat. They simply don't work with Subarus for some reason very well known issue with the cheap tstats.
No heat from the heater means your lacking coolant or coolant flow in the system. Are you adding coolant to the car? If yes then you probably have the external HG leak which you can spot by looking under the car, driver side from just behind the front wheel - looking forward and to the center you can see the back bottom corner of the engine driver side. This is where the leaky HG is spotted right after running the car you will see coolant dripping off the engine block onto the hot exhaust.
If you don't see any coolant dripping and your not adding coolant to the system - then your issue could be a fouled up radiator - a thermostat that is not working correctly etc. Only USE Subaru tstats!!! The cheap parts store thermostats will cause your car to over heat. They simply don't work with Subarus for some reason very well known issue with the cheap tstats.