The presence of the valves usually restrict the coolant flow into the heater core.
Heater core plugged? Heater core airbound? Thermostat not opening to allow coolant flow?
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.
Heater core may be air bound and have to be bled Heater core may be plugged or restricted Thermostat may not be opening allowing coolant flow to core
Yes. The coolant carries the engine heat to the heater core. Without coolant the heater core does not get warm.
No. There is no coolant flow valve.
Thermostat has to open to allow fluid flow. The supply hose to the heater core is located before the thermostat, forcing the coolant through the core even as the coolant is heating up. Water pump has to work properly to cause fluid to flow. Temperature control (lever) has to operate properly to allow fluid flow. System must not be air-bound to allow fluid flow Heater core must not be plugged
Your system could be low on coolant to flow through the heater core. You may also have a blockage somewhere preventing coolant flow into the heater core. If you can hear your blower motor blowing, perhaps the dash was put back into place incorrectly and the heat is being diverted away from it's intended path.
white smoke indicates coolant in the ignition chamber. check for blown head gasket heater core has 2 fixes. install a new heater core, or disconnect heater hoses from heater core and join them together so coolant will flow.2nd fix will completely stop heater from working
Check the coolant level...if the level is too low, it will not flow through the heater core. Next, check the thermostat. If it is sticking, it will not let the coolant heat up. These are inexpensive, and easy to change by the owner. If none of these work, have the heater core checked by a mechanic. An obstruction in the core, or the heater hoses, will keep coolant from flowing through the core, thus not heating the air.
its happen because heater core have too much durt insaide and you can clean it with some blowing thing or replace
This would indicate relatively low coolant flow and heat is turned on.
coolant on the floor