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Old 05-31-2010, 11:58 PM   #6
85Bowtie
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Join Date: Mar 2009
Location: TN
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Re: 84 C10 with I6 -Rod knock?

That doesn't sound like a rod knock. A rod knocking has a deep sound to it, kind of like stomping your foot on the ground. That sounds like something either in your valvetrain or possibly piston slap. I can't tell from an internet video, piston slap isn't usually THAT noisy but the video might over exaggerate it. It also usually goes away once the motor warms up and the pistons expand and create a tighter fit in the cylinder.
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Last edited by 85Bowtie; 05-31-2010 at 11:59 PM.
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