2004 Chevy Impala catalytic converter

2004 CHEVROLET IMPALA
92,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
TSMITH2809
  • MEMBER
  • 1 POST
Was wondering around what millage would the cat converter go out cause the message i get from the computer when i hook it is says cat efficence low what does this mean? do i have to replace the whole thing?
May 13, 2010 at 1:46 PM
Advertisement
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
Many different things can dictate the life of a cat converter.If there have been engine problems such as a blown head gasket, the coolant contamination can shorten the life, as well as oil contamination.If you are getting a "cat efficiency low" code, I would take it to the dealer and see what th ewarranty is for emissions.Its ony 6 years old and under 100k miles you may be able to get itwarrantied.Otherwise you will need to replace the entire cat converter.
May 14, 2010 at 8:07 AM