When I turn the blower on, it sounds almost like it's blowing through a deep-sounding kazoo. Kind of a vibrating sound or like there's something in there.

It's a 2011 F150. Bought it new a couple months ago.

Anyone know what it could be?

Thanks.

 

Figured it out. Brought it to the dealer and they took the blower motor out. It had a Jolly Rancher wrapper stuck in it. Damn kids!!!!