The heater core may be plugged. With the engine running and fully warmed up, feel both of the heater hoses with your hands. If one hose is hot and the other is luke warm or cold, the heater is plugged in which case you can try flushing the heater core. If both hoses are hot, the temp blend door acuator behind the dash assembly is broken. If both hoses are cold, replace the thermostat again and be sure the cooling system is full.
Is thermostat opening? Is system airbound? Is water pump circulating coolant?
heater core....
You could have a problem with your thermostat in the car.
problem will be in heat control switch in dashboard
You cant
the thermostat is located behind the timing bet cowling. it is a bear to get off. i changed the timing belt and everything in there when i got it off. too hard to get off to have to do the job twice. the probem is that you cant get to the bolts and there is about 9 of them. i also changed the water pump.
Yes if the impeller fell off the shaft , the system is clogged, or the thermostat is stuck closed the water will not flow(will probably cause overheating).But if your not getting heat from the heater it is most likely a by pass valve or clogged heater core. If the heater core was leaking it may have been bypassed to avoid leaking water.Could also be something as simple as a vacuum hose/actuator that controls a wind vane that directs air flow towards or away from the heater core.
No they CANT have a heater because the temp of their water cant go over 75 f. They arnot tropical fish so they cant have a tank temp. that is higher than that.
Because the water heater is turned up too high.
Check for a heater control valve in the upper hose to the heater core, they stick all the time, then see if the air mix door is functioning properly on the heater itself.
Check the thermostat. It may be stuck on. Try changing the temperature setting and see how it reacts. If you cant get it working by playing with it, you may have to have it replaced.
change the density by altering the shape.