The problem is your mode door. This could be caused by various issues:
- Actuator motor not working (easy fix to swap out)
- Actuator motor not calibrated so turning the knob puts it on the wrong setting ($100 computer fix at the dealer)
- Gears on flap broken, which is inside the air distribution box ($$$$!!!! Or lots of time and pain.)
Here is an excellent thread on how to find the mode door actuator and diagnose it:
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=104&t=82363In my case, it is #3. Here is my thread with the details:
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=88870
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2008 Liberty Sport 4x4 Automatic
Jeepin By Al 4" Lift Kit
BFG KO2’s 245/75R16
Full MOPAR skid plates
Rock Lizard Skink Super Sliders
AtTheHelm Front Recovery System & Roof RackM116A3 Trailer build thread: viewtopic.php?f=72&t=77997