2011 LT 1.4 turbo automatic suddenly stopped moving as much air as before through the recirculate mode with the AC on or off (volume of air being moved from vents on different settings is 1/4 of what it should be). if i turn off recirculate it moves air like crazy (as you would expect). any ideas what this could be? does this sound like a blend door actuator, although it doesn't make any clicking sounds like the gears are off sync. i'm stumped on this one, never seen this before.