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12.7 Detroit 96 w9 jake brake switch wiring

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by SanRoc, Sep 9, 2018.

Page 2 of 2
  1. Sep 10, 2018 #11
    SanRoc

    SanRoc Bobtail Member

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    What I don’t know is whether the two stages that work are 1&3 or1&2 or 2&3 etc...
     
    SanRoc, Sep 10, 2018
    SanRoc, Sep 10, 2018
    #11
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  3. Sep 10, 2018 #12
    Rideandrepair

    Rideandrepair Road Train Member

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    When were you told to run overhead @ 70k ?
    can you draw me a picture?lol I got it I remember that st up vaguely both my freightliners 99 And 01have 2 switches 2cy and 4 cyl on and off.
     
    Rideandrepair, Sep 10, 2018
    Rideandrepair, Sep 10, 2018
    #12
  4. Sep 10, 2018 #13
    SanRoc

    SanRoc Bobtail Member

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    I was although that is a bit further in the future than I am looking at this point. Lol
     
    SanRoc, Sep 10, 2018
    SanRoc, Sep 10, 2018
    #13
  5. Sep 10, 2018 #14
    SanRoc

    SanRoc Bobtail Member

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    I was told to bring it back by the builder at 6 months to check it all.
     
    SanRoc, Sep 10, 2018
    SanRoc, Sep 10, 2018
    #14
  7. Sep 10, 2018 #15
    Rideandrepair

    Rideandrepair Road Train Member

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    Might as well wait unless you pull valve cover and Check wiring looks like each Jake (3 total) has only I wire each
     
    Rideandrepair, Sep 10, 2018
    Rideandrepair, Sep 10, 2018
    #15
  8. Sep 10, 2018 #16
    AModelCat

    AModelCat Road Train Member

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    If it works and high is actually high, your solenoids and wiring should be good.
     
    AModelCat, Sep 10, 2018
    AModelCat, Sep 10, 2018
    #16
  9. Sep 10, 2018 #17
    SanRoc

    SanRoc Bobtail Member

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    Sep 9, 2018
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    That’s kind of what I thought as far as inside the engine. The entire harness firewall forward is new as well.
     
    SanRoc, Sep 10, 2018
    SanRoc, Sep 10, 2018
    #17
  10. Sep 10, 2018 #18
    Rideandrepair

    Rideandrepair Road Train Member

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    Maybe they left I unhooked or it got pinched
     
    Rideandrepair, Sep 10, 2018
    Rideandrepair, Sep 10, 2018
    #18
  11. Sep 10, 2018 #19
    Rideandrepair

    Rideandrepair Road Train Member

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    Looks like middle position for center Jake top position for front and rear bottom position for all three. My guess is the harness to the Jakes themselves is the wrong type. Just a guess
     
    Rideandrepair, Sep 10, 2018
    Rideandrepair, Sep 10, 2018
    #19
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