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2007 navistar 9400 brake pedal switch.

Discussion in 'Trucks [ Eighteen Wheelers ]' started by lciambotti1, Jul 30, 2015.

  1. Jul 30, 2015 #1
    lciambotti1

    lciambotti1 Light Load Member

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    Mar 6, 2015
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    Any idea how to adjust the brake pedal switch so the brake lights come on without me slamming on the brakes? I have to push down pretty hard for them to light up.
    Thanks.
     
    lciambotti1, Jul 30, 2015
    lciambotti1, Jul 30, 2015
    #1
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  3. Jul 30, 2015 #2
    Smellfunny

    Smellfunny Road Train Member

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    I am 99% sure the brake switch is located on firewall right below driver side wiper blade. It is an air switch that is activated by air pressure when you apply brakes air goes to that switch and sends power to lights. I
     
    Smellfunny, Jul 30, 2015
    Smellfunny, Jul 30, 2015
    #2
  4. Jul 30, 2015 #3
    Smellfunny

    Smellfunny Road Train Member

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    It should look something like this. I know 2000 year models are like this. Not sure when they started.
     

    Attached Files:

    Smellfunny, Jul 30, 2015
    Smellfunny, Jul 30, 2015
    #3
  5. Jul 30, 2015 #4
    lciambotti1

    lciambotti1 Light Load Member

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    Cool. I'll look for it. Since they do work when I push hard, maybe the line has a crack in it.
     
    lciambotti1, Jul 30, 2015
    lciambotti1, Jul 30, 2015
    #4
  7. Jul 30, 2015 #5
    Smellfunny

    Smellfunny Road Train Member

    1,395
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    Jan 28, 2012
    South Carolina
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    Probably dirty/oil or water in the switch or it may just be going bad. You can just pick one up from International and replace it. If that is where it is on your truck. I am not sure what year they started putting them out there.
     
    Smellfunny, Jul 30, 2015
    Smellfunny, Jul 30, 2015
    #5
  8. Jul 30, 2015 #6
    lciambotti1

    lciambotti1 Light Load Member

    107
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    Mar 6, 2015
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    Got it!. Thanks!!
     
    lciambotti1, Jul 30, 2015
    lciambotti1, Jul 30, 2015
    #6
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