Mechanics

CATALYTIC CONVERTOR

1991 Buick Riviera • 6 cylinder FWD Automatic • 217,000 miles

Would a catalytic convertor make a knocking noise and cause the engine to act like it's missing out if it is clogged or bad?
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JAHURST
April 8, 2011.



Try disconnecting the exhaust pipe and see what happens-Also depends what type of knocking noises-valvetrain/bottom end or detonation/pinging during acceleration

Rasmataz
Apr 8, 2011.