Hood -- not good -- vibrations
If the trailing edge of the hood on a 2009-2010 Acura TSX vibrates or flutters on rough roads or at highway speed, the probable cause is insufficient support at the rear hood seal on the cowl cover.
Replace the rear hood seal with Acura seal P/N 74143-TL0-305.
Peel the original seal off. Install the new seal and firmly press the seal into place on its engagement rib.