Is the back of your hood adjusted so that it fits snugly against the hood-to-cowl seal? If not, that will make a lot of racket.
If that area is tight, check to make sure the spot welds near where the cross bracket meets the hood at the hinge area haven't come loose.
There is a fairly large gap between the bracket and the underside of the hood, so I wouldn't expect that is where your trouble would be.
Carl
