Knocking noise when warm - Alfa Romeo Forum
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Knocking noise when warm


I have recently noticed a knocking noise between 2500-3500 rpm and the again after 4500. I thought it might be the variator but why is it doing it only when it's warm (80-90 degrees), doesn't make sense to me?
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have you checked the exhaust? look for broken brackets, espeically around the engine where the cats are supported.

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knocking , noise , warm

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