I replaced my blend doors some time back. I got a kit that had two seperate flaps for the dual climate control. It cost a bit more than the single flap replacement kit but I thought it would be worth the extra to keep the dual control.
There are 2 motors, one for each flap. The drivers side motor is easily accessable once you have cut open your glove box. The passanger side flap control motor is on the other side. You can not get access to this motor through the glove box.
After taking mine apart I found the passanger side motor had stopped working. I couldnt replace this (without taking the whole dash off!) So I ended up joining my 2 flaps together with a steel pin through the aluminium shaft! So both flaps are operated by the one motor on the inside- in effect I have made a single flap kit! Doh!
Also there is a procedure for re connecting the battry and testing the drive motors. The motors go through a check when operated for the first time which turns the motor 1 full rotation. As a friend of mine found out after replacing the flaps leaving the opening in the glove box open to check they are working. When he turned the heater on and adjusted the temperature the motor turned the flap then continued to turn snapping the pin stop off near the motor. Leaving him to buy another flap kit!
I think the problem is these motors are way too powerful to turn a little flap and in time snap the flap off.
It is an easy job. Its worth doing some reaserch on the 'start up procedure' first though. I cant remember what I did
This procedure might be in the instructions that come with your flap kit.
Good luck hopefully you will have hot air soon!
Jeep wj 2003 2.7 crd. Rough country 4inch long arm lift. Tom woods front shaft. Custom fab Rear tire carrier. Polish fender flares. Gas tank lift. 305x70x16 cooper stt on 16x8 black modular rims.