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1991 Buick Riviera
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?
Friday, April 8th, 2011 AT 7:53 PM
Try disconnecting the exhaust pipe and see what happens-Also depends what type of knocking noises-valvetrain/bottom end or detonation/pinging during acceleration
Friday, April 8th, 2011 AT 7:57 PM
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