Getting catalyst system fficiency below.

Tiny
ANONYMOUS
  • MEMBER
  • 2000 GMC SIERRA
  • 147,000 MILES
Getting catalyst system fficiency below threshold both sides. There a way to clean a catalytic converter as opposed to replacing?
Sunday, March 3rd, 2013 AT 6:44 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
They usually melt down inside. Thus they can't be cleaned.
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Sunday, March 3rd, 2013 AT 6:45 PM

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