Thanks for the suggestion.
1) Today I pulled out the radio/climate unit with the tool I bought
from Autozone. The first thing I saw is the big round black box,
which seems the blower motor housing. I guess the blender door
is hidden behind the black round case, and is about 2 feet deep inside.
There are so many stuffs to unbolt and remove to reach it. I gave up.
2) When I just turn on the A/C, I can feel a kind of smell like in humid air.
But there was no odor. So I assume the evaporator is free from mold.
Originally Posted by tbird100636
I'll answer each one seperately.
1.) Most likely the blend door actuator. A way to check is partially remove the ICP (Radio/climate controls) unbolt and remove the actuator, then operate the lever on the box and see what you get.
2.) You would immediately know if you have mold just by the smell of the air. If you haven't done so already make sure the cabin filter is present and clean. This helps somewhat. Try to avoid using MAX A/C too much. This can cause mold to develop faster after prolonged use.
3.) It isn't like that normally.