2001 Audi A3 Car Loses Exceliration Alo Rattling Noise Underneath

11,200 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
The car loses exceliration alo it as a rattling noise underneath
Feb 24, 2013 at 9:38 AM
Avatar
HOMER1967
  • ✓Experienced Mechanic
  • 875 POSTS
i would suspect that you have a broken and or restricted catalytic converter.that is where i would start.can you remove an 02 sensor before the cat and drive it to see if it's better?
Feb 24, 2013 at 2:23 PM
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.

Frequently Asked Problems for This Vehicle