If it isn't cycling all the way. Cabin Filter Change and the Recirculation Flap Issues FIXED - https://forum.ih8mud.com/threads/cabin-filter-change-and-the-recirculation-flap-issues-fixed.1018604ok, update;
opened the glove box and removed the slim horizontal door to expose the cabin air filter chamber, the "accordion" cover type of thing attempts to lift up but remains in shut position. i played with it a bit, lift up, shut, lift up. by the way, my cabin air filter is stuffed with leaves...maybe a contributing factor.
anyhow, how come that accordion trap door is not opening when switching from outside to recirculation? bad news?