2002 Renault Scenic Repair Question
Topics covered: Catalytic converter, Clunking, Rotten egg.
Mileage: 74,000 miles.
Mileage: 74,000 miles.
Asked on June 9, 2012
Car is making clunking sound and smells like rotten eggs
Car was running well,no warning lights nothing.Went to drive it on friday,there was ajuddering,a clunking sound and a smell like rotten eggs.help
Answer
Replied on June 9, 2012
That sounds like the catalytic converter has rotted internally and collapsed in on itself. It needs to be replaced. Try tapping it with hand or rubber mallet to listen for loose material to check it for sure.