Alright folks, long time no see! Having an issue with the 09 Platinum 5.4. Recently the air ducts to the passenger side have been routed straight to hell. The blow hot regardless of the setting, the driver side is fine. I can hear a clicking noise that gets faster/louder with the fan speed on the passenger side. Im thinking blend door motor? Can anyone shine some light? Possibly location of this part and some replacement instructions? Wife and kids arent digging this hot heat all the time, its a very uncomfortable ride in such a great truck!

 

This might help.
2009 FORD F-150 Parts - AutoNation Ford White Bear Lake Parts (previously Tousley Ford Parts)

 

Sounds like a blend door issue.

 

If you hear the electric motor (Actuator) that may be you problem...
It does suck to get to, hope you have warranty.

Unk Bob

 

Warranty is gone, I did hear something "flapping" if you will. I went low floorboard on the passenger side and removed the blower to find a random plastic bag wedged in there, removed it and solved that issue. I did go on and remove the nav screen, cd player and all the middle trim to open up a gaping hole in the dash and there it sat, top blend door actuator (controls passenger side). I played hell getting it out but i did get it swapped over and everything put back in. Works fine now, in total probably 6 hours including time to run to the dealer for the part. Wasn't a bad job if you're up for a small challenge.