I can confirm that the dorman number was 604 253.
Ford flex passenger blend door actuator.
Hvac blend door actuator replaces 604 234 aa5z 19e616 c yh 1779 for 2011 2018 ford explorer flex 2008 2018 ford taurus 2010 2018 lincoln mkt 4 3 out of 5 stars 62 17 99 17.
Connect the hvac wire harness connector to the blend door actuator.
The top right bolt was almost impossible to get to in this particular location but with the use of a titan 1 4 drive micro ratchet a 1 4 to 3 8.
If necessary rotate the actuator slightly to align the splines on the actuator output shaft with those on the blend door cam.
For me the key issue was moving the black plastic cover out of the way far enough to gain good access.
Four seasons 8a8z19e616a air door actuator fits blend door controls the blend of hot and cold air.
I installed this for the passenger side blend door actuator on my wifes 2013 ford flex that had failed after 6 7 years.
Auxiliary or blend door controls the blend of hot and cold air.
The install was a pain.
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My procedure was to.
Tighten the screws to 17 inch lbs.
Install the screws that secure the blend door actuator to the passenger side of the air distribution housing.
Mode door controls which vents the air comes out of.
The passenger side blend door is working now.
It was not fun but took me a little over an hour to do.
Install the blend door actuator onto the passenger side of the hvac air distribution housing.
Fixes problem where passenger heater vents are stuck at one temperature on a 2011 2012 2013 2014 or 2015 ford explorer.