Recently became a jeep owner and am quickly learning about a few problems, mainly with hvac system. Replaced control module for blower motor, now that at least works. Discovered blend doors not working, fixed that, thanks to heater treater( though don't have duel climate control anymore). Problem now is doesn't seem to be changing locations when I select vents. I've already determined recirc doors working. Anyone have suggestions. Thanks frustrated new jeep owner.