I have a 07 Taurus that the AC/Heater blend door is not working so I replace the actuator and that didn't work so I replace the control switch and that didn't work also so now I'm not sure what could be wrong any help would be appreciated .
Do you have the automatic or manual system? Also the blend door is electronic, controls the amount of heat, and uses the knob that marked as red heat and blue cold. . The positioning of defrost, floor heat etc is controlled by vacuum and is the one that shows all the positions the heat comes from. Just checking. You said the blend door does not work but what are the symptoms?
I have a manual system. The problem is that the hot and cold door that the actuator moves is not working, so I started with replacing the actuator and when I plugged in the new actuator it moved a little pass the standard stopping point now when I tried to put the actuator back in the screw holes do not line up like it did when I first put it in not sure if this means anything.