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Recent content by AlphaOmega

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    Cummins HO Predetonation

    Cool. My Duramaxes were 2016, 2019
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    Cummins HO Predetonation

    So you are saying this is normal? Just asking. Didn't hear this with my Duramax in the past. Also, just to be clear, this is a predetonation sound, not the normal solid thudding sound of a diesel.
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    Cummins HO Predetonation

    Yes, that is what I would call it...timing rattle, predetonation. Was rare before the flash, and is prevalent after. I am wondering if they used the wrong flash. Was searching this site and saw a TSB on two different flashes depending on which CP4 version the vehicle has. This dealership is a...
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    Cummins HO Predetonation

    HasBeen is yours HO?
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    Cummins HO Predetonation

    Hi all, Been lurking here for awhile and just joined. Bought a 2020 3500 HO Cummins about 4 months ago. Had it to the dealer yesterday for belt/pulley chirp, and check engine light (which ended up being and exhaust sensor I guess). Anyway, they also reflashed my PCM yesterday because...
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    Cummins HO Squeaky Belt or Pulley

    Hi All. New here. Just jumping in to say same thing is happening to my truck. 2020 3500 HO Cummins. Chirp/squeak started a few weeks ago. Pretty much there all the time. Had it at dealer yesterday and they tried to say they didn't hear it. I show up at end of day to pick it up and it's still...
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