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2003 international 9400i

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kevin Mack, Sep 17, 2019.

  1. Sep 17, 2019 #1
    Kevin Mack

    Kevin Mack Bobtail Member

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    Sep 17, 2019
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    I step on the brake pedal and no brake lights unless you really stand on it. Can those actuators be cleaned?
     
    Kevin Mack, Sep 17, 2019
    Kevin Mack, Sep 17, 2019
    #1
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  3. Sep 17, 2019 #2
    Tb0n3

    Tb0n3 Road Train Member

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    I'm fairly certain it's not the kind of thing that can be cleaned.
     
    Tb0n3, Sep 17, 2019
    Tb0n3, Sep 17, 2019
    #2
  4. Sep 17, 2019 #3
    Kevin Mack

    Kevin Mack Bobtail Member

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    Sep 17, 2019
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    It's just a plunger. I just figured since it's on the floor with all the dirt, grime etc that it might help. Thanks
     
    Kevin Mack, Sep 17, 2019
    Kevin Mack, Sep 17, 2019
    #3
  5. Sep 17, 2019 #4
    TTNJ

    TTNJ Heavy Load Member

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    Plunger usually sticks closed and brakes are on, not the other way around....at least that has been my experience
     
    TTNJ, Sep 17, 2019
    TTNJ, Sep 17, 2019
    #4
  7. Sep 17, 2019 #5
    Tb0n3

    Tb0n3 Road Train Member

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    I was referring to the pressure transducer that should turn the lights on. Are you talking about the brakes not actuating or the lights not coming on until you have lots of brake pressure applied?
     
    Tb0n3, Sep 17, 2019
    Tb0n3, Sep 17, 2019
    #5
  8. Sep 17, 2019 #6
    Kevin Mack

    Kevin Mack Bobtail Member

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    I have to almost stand on it to the floor for lights to come. Brakes are activating just fine
     
    Kevin Mack, Sep 17, 2019
    Kevin Mack, Sep 17, 2019
    #6
  9. Sep 17, 2019 #7
    Tb0n3

    Tb0n3 Road Train Member

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    There should be a plug in device in the system that activates the lights. It should probably be replaced.

    2007 9400 brake light switch adjustment??
     
    Tb0n3, Sep 17, 2019
    Tb0n3, Sep 17, 2019
    #7
    Heavyd and Kevin Mack Thank this.
  10. Sep 18, 2019 #8
    devedo

    devedo Light Load Member

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    Your brake light switch is worn out.

    If the brakes and pedal are fuctioning properly then the switch is bad.
     
    devedo, Sep 18, 2019
    devedo, Sep 18, 2019
    #8
    Tb0n3 and Heavyd Thank this.
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