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N14 Jake brake issue

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by killalol, Jul 8, 2022.

  1. Jul 8, 2022 #1
    killalol

    killalol Bobtail Member

    15
    4
    Apr 15, 2022
    0
    Hello!
    Yesterday , after turning off my engine brake I would accelerate and it would sound like the engine is knocking . Like the engine brake is engaging .
    I was wondering if it’s safe anyways or should I just avoid the engine brake ?

    I saw that it could be the solenoid , what else can it be?

    thank you!
     
    killalol, Jul 8, 2022
    killalol, Jul 8, 2022
    #1
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  3. Jul 8, 2022 #3
    killalol

    killalol Bobtail Member

    15
    4
    Apr 15, 2022
    0
    Forgot to mention it’s peterbilt 377 with a Cummins n14 celect plus
     
    killalol, Jul 8, 2022
    killalol, Jul 8, 2022
    #3
  4. Jul 8, 2022 #3
    Inderjit

    Inderjit Heavy Load Member

    725
    708
    Sep 17, 2017
    0
    I suspect you have a broken inner spool valve spring. This is a common problem and I would advise not to use the engine brake until it is repaired. While you are in there replace all six of them.
     
    Inderjit, Jul 8, 2022
    Inderjit, Jul 8, 2022
    #3
    killalol, spsauerland and pup Thank this.
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