I just had my blend"or" failure but i didn't have the time or inclination to 'cut and gut' my 05 xlt, so i took out the front vent louvers and opened the valve for upper air, then i straitend a coat hanger and bent a tiny hook at the end. Quessing the proper shepard's hook, I sent it to the botton back of the heater box and in just a few tries, with the BDA clicking it's rythmic beat was able to pull the door into the 'uprite/heat' position where it will hopefully stay until the flowers bloom in spring. Good luck,,,,mike this is more ramble than advise so no need to read but: rather then remove the knob, i cut the tip off my new tool so that it would fit into the small hole inside the back of the knob opposite the indicator, the piece was an 'L' only 3/32nds x 3/8th" long and when wedged into the hole and with the knob @ full heat, keeps it from being turned towards cold. Come mid-April, I'll have won the lotto and turn it in for a buggati, or figure out a way to flip the door down for cool. It may be inclined to do that on it's own, since once the BDA got passed the 'skip' it seemed to finish the trip on it's own accord, then the coathanger got 'stuck' and needed some qentle wiggling to be retrieved. OK, Tools required: metal coathanger, small flathead screwdriver, good pliers with cutters. (1) cut or straiten coathanger for max length, (2) use screwdriver to gently pry center console vents from dash, (3) bend end of hanger to a tiny 45% hook, (4) bend basketball sized arc in first 8" of hanger (5) turn on power to car and set to 'full heat' and 'upper vent', you will see the flap valve(s) move back and that's the entry point, move your wand in and down until you reach the bottom back (towards the motor) of the heater box, you should feel the clicking, it may take some rod adjustments to get in the very back and then you simply 'fish' the rod out the hole until you feel the door rising and the clicking will end. (6) remember to thank whatever power your'e grateful to. Does anyone have a schem. of the entire box? that'll be a big help come spring. thanks mike