Knock noise - Diesel Bombers



Chevy/GMC Duramax 06-07 LBZ Discussion of Chevy and GMC Trucks with LBZ Duramax Turbo Diesel Engines

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Old 05-31-2017, 03:08 PM
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Default Knock noise

Need some help. I've got a knock noise at around 1200. To 1400 rpm. It goes away above and below that range. The video is a bit shaky but towards the end the noise is very pronounced. Weather is around 68f that day and low humidity. I have heard this when it was winter weather only warmer like now. In NW Indiana

Last edited by billu; 05-31-2017 at 03:22 PM.
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Old 05-31-2017, 03:16 PM
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ATTN

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Old 05-31-2017, 05:36 PM
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Today same weather. Same tank of fuel. Noise went away. Any ideas?
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Old 06-17-2017, 08:35 AM
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would need a scan tool to monitor and make sure the injectors are ok and hope that is your problem.
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