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2014 Chevy Silverado
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Cylinder 2 causing scraping sound?

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Old August 6th, 2015, 9:35 PM
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Default Cylinder 2 causing scraping sound?

I removed the spark plug connector and found out that it's cylinder 2 causing the problem. In video 1,you can see this.

In video 2, I floor it and you can hear that it can't hold a consistent throttle. It sounds like I'm pumping the gas but I'm holding it down steady.

Disconnecting and connecting spark plug cable. See difference in sound.


Now I floor it and hold it.

Old August 7th, 2015, 12:17 AM
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In the 2nd video is normal rev limiter
Old August 7th, 2015, 12:19 AM
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So this is 100% normal? The puffing sound?
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