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2000 Chevy Trailblazer catalitic converter

Tiny
KAJOSEPHS5032
  • MEMBER
  • 2000 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 137,000 MILES
I have replaced my cat. Converter 4 times in the last 9months They were all aftermarket brands at a muffler shop I havebeen going to since the 60s.
The last time I replaced it was 5 days ago. The engine
lite went off and I took my vehicle and passed the emission test. 2 days ago the engine lite went on again.
I was told my a machanic that I need a original equipment cat converter from chevy?
Could this be my problem?
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Monday, March 1st, 2010 AT 12:37 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Well, it depends. Why are the converters going bad? Mis-diagnosis? What does the muffler shoop say?
Burning oil or coolant can kill a cat.

I have had situations where you indeed need an OEM Cat. NEVER would I use a universal one, always direct fit.

There are different qualities of converters and the precious metals will reflect a cost difference.
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Monday, March 1st, 2010 AT 1:37 PM

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