1999 Chevy Tahoe catalytic convetor

Tiny
OTEU829
  • MEMBER
  • 1999 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
How can I tell when the catalytic convertor is bad?
Wednesday, July 22nd, 2009 AT 12:54 AM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
The only way to truely tell is to have your converters air flow tested. This requires special equipment and a welder. Any exhaust mechanic should have the equipment to do this. Your Tahoe has two converters on it and they should be tested independently.

BTW - Federal Law states that a converter must be determined faulty BEFORE you can replace it.
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Wednesday, July 22nd, 2009 AT 10:50 AM

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