really bad rattle under car. increases up to 40mph then quiets. on 1992 Audi 100

possibly from exhaust system

by in Boise, ID on October 21, 2013
3 answers
ANSWER by , October 21, 2013
Broken catalyst in cat. converter i suspect. Possible heat shield also. Have vehicle hoisted and checked.
ANSWER by , October 21, 2013
Agree with #1, probably loose heat shield.
ANSWER by , October 22, 2013
poss cats or heat shields