06 lbz odd knock under heavy throttle - Diesel Bombers

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06 lbz odd knock under heavy throttle

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

06 lbz odd knock under heavy throttle

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Old 01-06-2018, 12:55 AM
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Default 06 lbz odd knock under heavy throttle

I am new to the forums so I have no idea how this **** works. But anyways I have a 2006 lbz duramax with brand new gm motor 13k miles air dog 4g 165 pump cp3 sportsman pump Danville tunes built trans stock turbo so I had a injector mounting bolt come loose before and made a horrible knock and found it and torqued it and was good to go now I have an odd sound under heavy throttle that honestly sounds like injector know but I can hear the injector chatter (cause of such a big tune) and this sounds a little different and it's only under very heavy throttle I did notice my boost gauge fluctuating up and down I'm kinda confused here it's not my y bridge my boots are all tight balance rates on injectors are all good in park and drive (#2 injector is higher then others but still within range they should be) please give me any opinions or ideas thanks.
 
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