Car is making clunking sound and smells like rotten eggs

2002 RENAULT SCENIC
74,000 MILES
Avatar
MORVEN SHORTT
  • MEMBER
  • 1 POST
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
Jun 9, 2012 at 8:23 AM
Advertisement
Avatar
DRCRANKNWRENCH
  • ✓Experienced Mechanic
  • 3,380 POSTS
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.
Jun 9, 2012 at 10:30 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle