what would make you have to replace the catalystic converter
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1996 Lincoln Town Car Question: what causes the cadalystic converter to go
Answer #1ZeeTech February 19, 2011, 18:44Master
The regular lifetime of a catalytic converter is about 100,000 miles and it will be greatly effected by the fuel quality, engine performance ( poorly maintained engine put more stress on the converter), oil quality and also the mechanical condition of the engine.
Answer #2DaveJHM February 19, 2011, 22:09Master
To suppliment Zee's thought -- A huge killer of converters is when your engine is wasting fuel and dumping it out the exhaust. Fuel raises already very high temperatures to a new level, and the abnormal heat causes damage.