Diesel Bombers - Knock noise

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billu

05-31-2017 03:08 PM

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

billu

05-31-2017 03:16 PM

billu

05-31-2017 05:36 PM

Today same weather. Same tank of fuel. Noise went away. Any ideas?

2500HeavyDuty

06-17-2017 08:35 AM

would need a scan tool to monitor and make sure the injectors are ok and hope that is your problem.

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