How to I test heater/AC actuator?
What should the actuator do when I go to test it? I have mine detached from the top of the heater box on my 97 Ranger, but I have it plugged in to the electrical harness. Should the D shaped stem be moving when I turn the temperature selector, or should it be moving when I do something else? Should it happen right away? Right now the D shaped stem is not turning at all no matter what I do.