Braking issue.

Discussion in '11th Generation F Series : 2004 - 2008' started by Tj_1, Jan 5, 2020.

  1. Tj_1

    Tj_1 Junior Member

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    I'm having a brake issue. When I put the truck in reverse the brakes like to catch and release on their own and the brake pedal is super touchy. When I put it in drive I have absolutely no brakes. When I press the pedal it goes straight to the floor. Any ideas on what could be causing this.
     
  2. Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    Do you have any ABS warning lights?
    No brakes would have me checking fluid level in the master cylinder.
     
  3. Tj_1

    Tj_1 Junior Member

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    I checked all that. I had one person tell me it could be the brake booster yesterday.
     
  4. Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    Even with a ripped or torn diaphragm in the brake booster it still
    should allow for emergency braking even with the engine off.

     
  5. Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    If you have fluid and the brake booster isn't the problem.
    No warning light on the dash from "brake light".
    Could be the master cylinder has lost ability to make pressure.

    Have you tried to bleed the braking system starting at the right
    rear wheel and then left rear, right front and then left front ?

    Do not let the master cylinder run out of fluid during the gravity
    bleed process.

    You can have someone push the pedal for a faster process but do
    not let them release the pedal until you have tightened the bleeder
    screw each time.

     
    Last edited: Jan 7, 2020
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  6. Pity7700

    Pity7700 oh umm...uhh?

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    Visually inspect the brakes and attempt to bleed them in the proper order if everything looks ok.
     
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