2010 SL AWD
Two days ago, after 24 hours in the garage, my vent fan started sounding like it was hitting a leaf or twig or something. (sorta like putting a playing card in the spokes of a bicycle, y'know.)
There's also an occasional noise that sounds like a piece of something is being blown around for a second or two.
After running the fan for several hours there seems to be no improvement.
Assuming a leaf or twig or something fell down into the fan, how do I clear it out??