Thread: What are some things that can cause a catalytic converter to fail?
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Old 01-29-2004, 07:33 AM
manny manny is offline
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
Converter failure can be caused by:
1. Constant misfiring ( overloads & overheats ) the converter.
2. Excessive oil consumption.

I have seen total converter meltdown in 50 miles, due to a faulty coilwire ( GM ).
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