Rvance2011

I have replaced both actuators in my 2011 F150. I gained driver side heat but have nothing in the back or passenger. Do you think the lower blend door actuator is stuck? I replaced it because I was getting no heat in the driver side or back. Now it’s just the driver side.

Spiky

Driver and rear should go together regardless. So, that sounds like either a Mode actuator problem or physical blockage in your vents.

Also, if it says "Dorman" on the actuators, I'd just take them back while you still can and get Motorcraft.