I have a 2012 Ford F150, fx4 v8 with dual climate controls. My passenger side started blowing cold air once in December. I took it to the mechanic the day before Christmas and when they diagnosed it they told me the control board had risen (the part where you manually set the temperature you want). that it was the mixer flap actuator. The only good thing that came out of the mechanic's visit was that they took out the old drive but didn't put the screws back so it was very easy for me to take it out when I got this replacement part. This part was excellent value and about 1/3 the cost at the Ford dealer.