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Break problem on an old Ford

This is a discussion on Break problem on an old Ford within the General Help forums, part of the LSx Technical Help Section category; My pops has a 79 F150. I changed all the breaks front and back along with the master cylinder, after ...

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    lmpounded SandmanWs7's Avatar
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    Break problem on an old Ford

    My pops has a 79 F150. I changed all the breaks front and back along with the master cylinder, after driving it a few miles the front breaks tend to get stuck. Its like the caliper doesn't retract. Its fine when you first start driving but then afterwards they don't. Like at the moment, if I put it in gear the truck just stays put, you have to give it gas for it to move. WTF?? Bad Master?

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    Smiles for 9.5 Years cammed goat's Avatar
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    Maybe air in the system? What fluid did you use to fill the master?

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by SandmanWs7 View Post
    My pops has a 79 F150. I changed all the breaks front and back along with the master cylinder, after driving it a few miles the front breaks tend to get stuck. Its like the caliper doesn't retract. Its fine when you first start driving but then afterwards they don't. Like at the moment, if I put it in gear the truck just stays put, you have to give it gas for it to move. WTF?? Bad Master?
    Check the Vaccume line for the booster is connected and not clogged or dry rotted and leaking..

    Could be bad calipers.. Maybe a hard line got kinked..

    Did you get all the air out of the system for sure?

    good luck!

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by cammed goat View Post
    Maybe air in the system? What fluid did you use to fill the master?
    ninja

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    lmpounded SandmanWs7's Avatar
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    Dot 3

    I did a proper bleeding of the system I did have a lot of air coming out but kept bleeding it till a steady stream of fluid came out.

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    lmpounded SandmanWs7's Avatar
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    I just checked the master cylinder, it is fu*king hot!!!

    Im going to swap this out first and see if that is the problem. I don't think this should be hot at all.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Quote Originally Posted by Smittro View Post
    ninja

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    Smiles for 9.5 Years cammed goat's Avatar
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    Sounds like you boiled the brake fluid and the heat got to the master.

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    Smiles for 9.5 Years cammed goat's Avatar
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    You're going to have to jack up the truck and spin the wheels to see which one is binding.

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    Single Malt rbob93's Avatar
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    Clogged compensation port in the master would be my guess

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