Thanks for the info. I may put of the repairs for awhile since the recirc door doesn't seem to be causing any problems functionally. Until the weather gets really hot the not shifting from outside air to inside air is more of a nuisance than a hindrance.
Thanks to the advice on this forum, my lack of airflow has been fixed by reversing the blower wires. Checked everything again yesterday and, except for no recirc air, it works like a champ.
2003 Jeep Grand Cherokee Overland
2006 Jeep Liberty Diesel (GDE Hot Tune)