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Cummins isx 900k miles, how much life left?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vivaspin, Oct 4, 2020.

Page 2 of 2
  1. Oct 6, 2020 #11
    Goodysnap

    Goodysnap Road Train Member

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    CM 871 has mechanical injectors and does not have commonrail high pressure pump with the trouble prone failures that thrash the #4 main bearing.
     
    Goodysnap, Oct 6, 2020
    Goodysnap, Oct 6, 2020
    #11
    spsauerland, pushbroom and Brettj3876 Thank this.
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  3. Oct 6, 2020 #12
    Vivaspin

    Vivaspin Bobtail Member

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    Ok thanks man appreciate the help. By the way my engine brake is very weak. It does light up in dash when i press engine brake. But i dont feel it at all. Mechanic tried to adjust the valves or whatever it is that needs to be adjusted.
    What else could it be
     
    Vivaspin, Oct 6, 2020
    Vivaspin, Oct 6, 2020
    #12
  4. Oct 6, 2020 #13
    Goodysnap

    Goodysnap Road Train Member

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    You stated the truck is deleted. Does it still have the original VTG turbo or no?
     
    Goodysnap, Oct 6, 2020
    Goodysnap, Oct 6, 2020
    #13
  5. Oct 6, 2020 #14
    Vivaspin

    Vivaspin Bobtail Member

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    Yes its deleted. I dont know if the turbo is replaced. I have this picture of it, it says holset.
     

    Attached Files:

    Vivaspin, Oct 6, 2020
    Vivaspin, Oct 6, 2020
    #14
  7. Oct 6, 2020 #15
    Goodysnap

    Goodysnap Road Train Member

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    Afraid I dont have any silver bullets. Will have to be troubleshot. I would lean toward electrical issues if it does nothing.

    Cruise work? Clutch, brake pedal, switches?

    I asked about the turbo as the engine does use it for engine braking and in fact it is 1/3 of your braking power.
     
    Goodysnap, Oct 6, 2020
    Goodysnap, Oct 6, 2020
    #15
    AModelCat and pushbroom Thank this.
  8. Oct 6, 2020 #16
    pushbroom

    pushbroom Road Train Member

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    As for how long the engine will last..... could be 15 miles, could be a million. Crystal ball is foggy today.

    If the jakes work but are weak could be worn out jake rockers/ actuators. If nothing at all then electrical as stated above
     
    pushbroom, Oct 6, 2020
    pushbroom, Oct 6, 2020
    #16
    AModelCat, bzinger, spsauerland and 1 other person Thank this.
  9. Oct 6, 2020 #17
    Vivaspin

    Vivaspin Bobtail Member

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    Oct 2, 2020
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    Cruise works perfect. Its not weak, it just doesnt work at all. What wiring can i check. I checked the fuse, by the clutch pedal. All looks good.
     
    Vivaspin, Oct 6, 2020
    Vivaspin, Oct 6, 2020
    #17
  10. Oct 7, 2020 #18
    pup

    pup Light Load Member

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    Does the engine brake work when the engine is cold? Worn rocker shafts can cause a weak engine brake when the engine is hot.
     
    pup, Oct 7, 2020
    pup, Oct 7, 2020
    #18
  11. Oct 7, 2020 #19
    Vivaspin

    Vivaspin Bobtail Member

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    Oct 2, 2020
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    Cold and hot doesnt make a difference i tried it today again. Noticed the cruise control stopped working too
     
    Vivaspin, Oct 7, 2020
    Vivaspin, Oct 7, 2020
    #19
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