Had the same type of problem

......my X is a 2000 so it may be different......I found a couple heat shields that had the holes for the bolts corroded out and were loose and rattling. The floor has additional metal sheilds attached to the floor so the loss of a heat sheild is not a huge deal for me.......might be if you live in california or florida or somewhere very warm though......not here in Newfoundland
![[Freak]](graemlins/freak.gif)
. I just went under and took them off myself.....I think 3 peices in total.

They aren't cheap either if you get into replacing 3 or 4 of them.