My expedition heater is not working air condition works great. The heat does not blow warm or hot it blows cold front and back i change the thermostat n the heater cores are not leaking.

 

You might want to check out this website.
HeaterTreater™

 

This may be the problem also------------

Blend Door Actuator


Print


REMOVAL & INSTALLATION





Fig. 1 Remove the blend door actuator

1. Remove the LH quarter trim panel.


2. Detach the blend door actuator connector.


3. Remove the actuator retaining screws.


4. Remove the electronic actuator.To install:


5. The installation is the reverse of the removal.

 

Thank you for replying back i will try it this weekend and see what happens ill let yall know if it works. I really hope so i have two babies ive been pluging in a heater every morning to harm it up. lol