Interior temperature issue

[Goalieart]

Hey everyone,

I own a 2008 ST. With summer over now, I sometimes need to turn the heat on inside the truck on the cool mornings. However, when I turn the temperature gauge clockwise to the heat side, the air temperature does not change. What does happen, is I hear a flapping noise coming from below the dash. The only way to stop the flapping noise, is to turn the temperature gage counter clockwise all the way back to the coldest point. Does anyone have any idea what this is or how to fix it?

I need to fix it quickly. My daughters were freezing cold the other morning on the way to the babysitter.

 

[SMSgt09]

If you haven't already fixed this, which is highly unlikely, it is you blend door actuator. A snap to fix and about $45.00 for the part at the dealer. There are videos on You Tube to show you how.