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2001 Kia Optima Knocking and Sulpuric Smell

Tiny
ADODD1976
  • MEMBER
  • 2001 KIA OPTIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,000 MILES
When starting my car up this morning, it started with no problem, but it rattled and knocked quickly and loudly (which it has never done before). I decided to let it run for awhile and see if it would "warm up". After about 5 minutes I went back outside and the car was giving off a strong smell, it was a sulphuric smell. Do you have any ideas what could be the problem?
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Tuesday, January 27th, 2009 AT 11:44 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Based on your description, I would say the catylatic converter has come apart inside. It will rattle and can make that smell. Take a rubber mallot and tap on the converter to determine if that is where the rattle has come from. IF it is, it will need replaced.
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Saturday, July 11th, 2009 AT 8:48 PM

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