Within the last week, my heater has basically stopped working. I park outside and typically start the engine and use the defrost to clear the windshield in the mornings. Then when I get it, it's nice and toasty.
Well, last week, that was not the case and the problem continues. The air coming out (heater or defrost) is not warm at all. The temp gauge reads around 200 and fluctuates when driving. I live 15 miles from work and the heat never gets warm.
Is it the thermostat?
This is only a problem when it's cold outside 30 degrees or less.On a warm day, it will burn you out. That leads me to believe that it is not the heater core.