Could be an exhaust shield or a skip plate-jack it up and investigate
June, 13, 2011 AT 12:19 AM
Possibly a catalatic convertor broken loose and rattling. On those cars I have seen the heat shield under the exhaust manifold break and rattle.I would also check the heat shield that is on top of the muffler they break loose amd rattle also on those cars. Let me know what you find.