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Thread: 6.7L Cummins Knock

  1. Top Of Page | #1
    Permanent Vacation (Justinvr81)'s Avatar

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    6.7L Cummins Knock

    Hey all, new to the forum and new to Cummins.

    I picked up a 2014 ram 5500 with about 113000kms and 3800 hrs at an auction recently.

    I got it dirt cheap due to the noise from the engine.

    I have a low mileage used engine to put in it but I’d like to be sure of the source of the knock before I go ahead and swap it out

    What do you guys think?






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  3. Top Of Page | #2
    #1 VENDOR cumminsdieselfreak's Avatar

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    Just curious, what was the oil & coolant levels when you got it?

    2018 Ram 2500 4x4 G56
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  5. Top Of Page | #3
    More Powa! RATLIN'HP's Avatar

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    Does it have any oil pressure?

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    2015 Black Laramie CCSB 3500 SRW. Thuren Leveled With Fox 2.0 Shocks. Ride Rite Rear Air Bags With Wireless Airlift Onboard Air. 35" Toyos. All The Options Minus The Soot Cookers. RaceMe Ultra.

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  7. Top Of Page | #4
    Permanent Vacation (Justinvr81)'s Avatar

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    Oil level was good and clean.

    The cap is missing off the coolant reservoir and looked to have coolant in there.

    It’s got about 48 psi oil pressure at low idle.

    I haven’t got it up to proper operating temperature due to all the noise use making.

    Oil may smell a bit off, but could have been all in my head too LOL.


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  9. Top Of Page | #5
    MOD watersupply189's Avatar

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    Welcome friend!

    That doesn’t sound good at all.


    2016 Ram 3500 CC 4x4, G56, Dr. DRD medically cured

    2016 RAM 3500 4x4 Laramie Crew Cab ,G56

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  11. Top Of Page | #6
    More Powa! RATLIN'HP's Avatar

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    Re: 6.7L Cummins Knock

    She definitely sounds FUBAR.

    Hard to tell what though from videos.

    Good luck with the swap.

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  13. Top Of Page | #7
    I WILL STAND! AK Bob's Avatar

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    Re: 6.7L Cummins Knock

    Welcome!

    Agreed ^^^^^^ hard to tell!


    2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, 50 Gallon auxiliary fuel tank.

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  15. Top Of Page | #8
    Permanent Vacation (Justinvr81)'s Avatar

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    Re: 6.7L Cummins Knock

    Well I narrowed it down to l and had to pull it due to not being able to remove the oil pan.

    Just as well because it’s toast.

    This engine has a brand new cylinder head and during that I assume they dropped a pushrod down into the block and left it.

    In turn it got twisted up and knocked off a cooling nozzle and scuffed the hole


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  17. Top Of Page | #9
    Permanent Vacation (Justinvr81)'s Avatar

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    Re: 6.7L Cummins Knock








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  19. Top Of Page | #10
    MOD watersupply189's Avatar

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    Re: 6.7L Cummins Knock

    Ouch!!

    Yep it’s toast.


    2016 Ram 3500 CC 4x4, G56, Dr. DRD medically cured!

    2016 RAM 3500 4x4 Laramie Crew Cab ,G56

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