I finally found some spare time and the weather wasn't freezing cold and got to take the panel off and have a closer look. (I've gotten too old to enjoy laying on my back looking up) The actuators are moving, and seem to be moving fully. There still doesn't seem to be very much air. I'm sure I had more air flow in my old Jeep. I think at this point it's blockage, the fan speeds do increase/decrease. Maybe I'll just have to suck it up this winter, then in the summer yank out the fan and have a look. Unless I get my garage insulated before the end of winter.
Thanks for the input.
Edit: After thought... I couldn't hear it switching before. Perhaps they were stuck a bit and my tugging at them loosened them up? Or maybe just barely enough vacuum.. Great, more possibilities again. :P