1999 Ford Expedition "heater stuck cold" Questions

...heater control valve. When you start a cold engine, the main radiator hose to the thermostat should stay cold for about 5 minutes, until the engine is totally up to temperature. Only then should the ...

heater will not get hot This can only be one of a few things, so I would recommend that you make sure that the radiator coolant level is full, then check the engine thermostat to ensure that it is not

...heater blow cold some time warm air i dont know wat the problem EITHER VALVE STUCK TO ALLOW WATER IN MATRIX OR YOU HAVE AIR BLOCK IN IT. TAKE OFF TOP HOSE AND RUN MOTOR, TOP UP RAD AT SAME TIME, USED ...

...things that I have seen cause that problem is the blend door get stuck or stop working and the Heater Control Valve go bad and stop the hot coolent from going to the heater core. I hope this info ...

...heater blend door. The actuator may be stuck or broken. The actuator opens and closes to adjust for the heat setting in the car. You might be able to take a coathanger and manually open the door if ...

...stuck shut, not allowing coolant to flow. 2 the other problem is your heater core is bad. its located under the dash, behind the plastic panel. It's not an easy thing to change, but you can do it.. ...

...stuck or bad? also when i ran my heater on one cold day this spring it didn't seem to get as warm Have you tested / replaced the radiator cap? It might be weak and allowing too much fluid into the ...

...changers on this board, that will not fix your heat. if the engine is working OK the thermostat is fine. you have a plugged heater core or the temperature flap on the heater box is stuck

...not blown, ac works great Hi Check the heater coolant control valve. Expect it´s stuck on closed position ! Good Luck ! Remember to give me a FixYa rating please ! Let me know how you get on.

heater blows cold air what would be the most common problem that would cause this thermostat stuck open or blend door inoperative