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2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

Cylinder 2 causing scraping sound?

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Old Aug 6, 2015 | 9:35 PM
  #1  
Resendiz's Avatar
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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.

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Old Aug 7, 2015 | 12:17 AM
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Bern's Avatar
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From: San Diego CA
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In the 2nd video is normal rev limiter
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Old Aug 7, 2015 | 12:19 AM
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So this is 100% normal? The puffing sound?
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