Braking problem

Discussion in '10th Generation F-Series : 1997 - 2003' started by Alabass, Jun 28, 2021.

  1. Alabass

    Alabass Junior Member

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    Hoping someone can shed some light on a brake problem that just occurred on my 2003 F150. The right front brake suddenly quit working and the truck pulls hard left when brakes are applied. I pulled the caliper and it appears to be ok, replaced the lower brake line going into the caliper and tried to bleed the brakes but nothing comes out the upper brake line going to the master cylinder. Could it just be some blockage in the line, a faulty master cylinder affecting only one side, or what?

    Thanks for any help.
     
  2. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    Welcome to Ford Full Size
    @Alabass

    Very odd.
    No pinched hard line going to the right side ?
    Visual inspection.

    Maybe in the ABS.

    Do you have a way to do an ABS Purge
    such as FORScan ?


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  3. Alabass

    Alabass Junior Member

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    The lines all look good. I don't have FORScan.
     
  4. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    Easy freeware to get.
    FORScan
    https://forscan.org/home.html

    Just need Windows laptop and OBDII
    Wired dongle or wireless one I bought was OBDLink MX.

    Many useful 'tools' come with the Bluetooth ODBLink LX (green) MX+ (black)
    Wired are cheapest.

    Doesn't have to be ODBLink wire for FORScan. Most compliant OBDII made for CAN BUS will work.
    FleaBay has them.

    Read up on it, may or may not be what you want to get into.

    Great diagnostic tool though.[​IMG][​IMG][​IMG]

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    Last edited: Jul 1, 2021
  5. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    Will be a PITA to need a Brake Service Shop look at your 2003 if it is something in the ABS Module.

    Labor Rates aren't cheap.

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  6. Alabass

    Alabass Junior Member

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    Well, the brakes started working again for some strange reason. I had backed the truck up and parked it, and as I turned off the ignition, the brake pedal went to the floor. I bled the brakes and they have worked fine ever since. I suspect something in the ABS was the culprit.
     
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  7. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    Great news.

    No fighting it nor ABS module purchase.
    Give us a photo of it.

    @Alabass
    Distant will be good.


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