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Why is your vortec 5.0 knocking?

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Anonymous

15y ago
Updated: 8/17/2019

It could be:

A. worn rod or main bearings. If that's the case you'll have low oil pressure.

B. a faulty "knock sensor" that's supposed to retard the engine timing when it detects early ignition detonation.

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Wiki User

15y ago

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