Okay...after reading other posts I've taken off the plastic over the tranny hump and pulled out the plastic that directs the air flow. I have removed the little white box...not sure what this is actually called (actuator/blend door motor?). Anyway, I turn the temp **** and the shaft turns just fine on that motor...the white shaft fits into a black hole/tube and I can actually turn the tube, but the temperature does not change.

What next? I assume that there is a door that rotates when the shaft and tube turn, but I don't see it or how I get to it at all.

Any help would be appreciated!!