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1998 Chevy Silverado CATLYTIC CONVERTER

Tiny
D_WILLINGHAM
  • MEMBER
  • 1998 CHEVROLET SILVERADO
Engine Mechanical problem
1998 Chevy Silverado V8 Two Wheel Drive Automatic

My catalytic converter needs replacing. What causes the catalytic converter exterior to become dark?
Monday, June 28th, 2010 AT 11:34 AM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Cat. Converters rarely fail and the exhaust piping and converter will become dark due to the amount of heat it undergoes. That does not mean it needs replaced. The oxygen sensors should be replaced before repacing cat. Coverter.
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Monday, June 28th, 2010 AT 11:36 AM

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