So, just had it in the shop. Started whistling in the fall getting louder at the end of winter...then, hot out the passenger side, cool out the drivers side, no matter the temp settings. $1100, two actuators, draw down the ac, and I am repaired.

Anybody else have this problems? (Magazines have issues.)

2010 Lariat, separate controls for pass and driver.

 

I just replaced one for a friend on an 06 Lariat. It was about 80 for the part IIRC