ya mine seem to do it more after recall its the noise of the belt and pulley together im thinkingIt's just the nature of the beast, mine has done it since they did the recall.
It is most likely the belt. When you get the new belt, before you install it, use a green ScotchBrite pad and lightly scuff up the sheaves and clean the surfaces. You don't want any oil residue or debris on them as they will get deposited on the belt.