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Please help!! Loud whine/knock?

To my ear, that is something in the valve train. Rod knock is typically a lower frequency with a solid "thud" sound, with a rattle when you rev it. Lowest

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Please help!! Loud whine/knock?

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10-08-2021, 06:47 AM	#11 (permalink)
SonicVQ Base Member Join Date: Jan 2016 Location: Ontario Posts: 230 Drives: G37 Sport Rep Power: 6721	To my ear, that is something in the valve train. Rod knock is typically a lower frequency with a solid "thud" sound, with a rattle when you rev it. Lowest cost next option: Pop off the valve covers and have a look.

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