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2002 Chevy Impala Catalytic Converter

Tiny
MARK ROGER WEBB
  • MEMBER
  • 2002 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 81,000 MILES
I found the converter clogged and replaced it. The car runs great now. Can you tell me why the internal honeycoam material failed and clogged. Is this a manufacture defect? I read the repair of the intake manifold due to the converter clogging and causing a burn hole in the plenum.
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Tuesday, January 20th, 2009 AT 8:21 AM

2 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Usually they just go bad after time. I seen them go bad from a number of things also
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Tuesday, January 20th, 2009 AT 5:20 PM
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
If you have a poor performing engine, it can cause premature catalyst failure. Make sure you keep up with the vehicle maintenance schedule.
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Tuesday, January 20th, 2009 AT 10:11 PM

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