What can cause a catalytic converter to fail?

+1 vote
asked Apr 4, 2018 in Other-Cars/Transportation by Mangione (250 points)
What can cause a catalytic converter to fail?

What could cause a cars or other vehicles catalytic converter to fail and need replacement?

1 Answer

0 votes
answered Apr 6, 2018 by Mechanic21 (29,150 points)
Things that can cause a catalytic converter to fail prematurely are warped or worn engine components, Worn Piston Rings, Failing gaskets, bad valve seals, spark plugs that don't fire correctly causing a misfire can also cause a catalytic converter to fail because of unburned fuel igniting inside the catalytic converter.

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