over slow bumps. When I replaced my rusted out gas tank shield I had access to the filler area since the inner fender wall was out. Banging around I found the rattle is in the filler neck area. After looking on ETKA it does not show as a seperate part. It looks like it is the valve that stops the car gas tank from emptying if the car flips. Anyone else had this problem. I would love to solve it. Yes a cross post from B5 forum.