My Tiburon heat stopped working. Everything sounds as if it's working properly but no heat. I have the 3 knobs controller. When I'm under the dash and I change the temp control I can see it working properly. When I test the of the 2 water lines coming in and out of the core they are approx. 120 degrees. This happened all of a suddon not gradual. The only thing out of the ordinary is that the heater normally worked really good and I mean very hot so I was thinking something may have melted. I'm considering ripping the dash out and getting to the flap door and see what's goin on. When I rotate the knob and change the temp, the electric motor turns and you can hear the flap door open and close and the sound and volume of the air changes. It's as if the heater core is cold, that makes no sense. Please help.
No Heat on 2004 Hyundai Tiburon
That temp I took was on the outside of the hose going in and out of the core. The inside i would have to assume would be between 180 and 200. Is there some sort of diverter behind the firewall that doesn't allow the coolent to reach the core?