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[Z06] knocking sound

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Old Feb 4, 2012 | 10:59 AM
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Default knocking sound

I have a noticeable knock from the front drivers side of the engine, I used my stethoscope on it and know it's not an injector or valve. It sounds like maybe a lifter, but the sound isn't RPM related. I can't get any deeper on the block because of the serpentine belt. Could be something pully related? I can't hear it on the exhaust side, only further down in between the valve cover and intake manifold.

Again, it doesn't get louder or faster with RPM, I actually can hear it once i put any load on the engine. Common issue? what you guys think?
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Old Feb 4, 2012 | 08:45 PM
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No thoughts from anybody?
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Old Feb 4, 2012 | 09:43 PM
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The LS motor has been known for some cylinder slap and it may sound similar to what you are describing, but I can't say that for sure with your situation...just not enough info.

Try posting over in TECH.
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Old Feb 5, 2012 | 09:14 AM
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thanks, I'll go over and check it out.
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