Strange brake coupling pinhole leak (picture)

Discussion in '1998 - 2011 Ford Ranger' started by Mattio, Sep 7, 2012.

  1. Mattio

    Mattio New Member

    1998 Ford Ranger 4x4 4.0L Extended Cab

    The coupling that attaches the metal brake line to the master brake cylinder has a pinhole (by design) under a rubber band and I believe this pinhole is leaking while pressure is applied to the brake pedal. Can anybody help me out with this one? In the following picture, I circled in red the general location of the leaking pinhole.
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  3. OP

    Mattio New Member

  4. Hooligan

    Hooligan Rangerholic!!

    looks like the seal, may need to be replaced.
  5. OP

    Mattio New Member

    By seal, do you mean the little rubber dealio that goes around? What's the purpose of this pinhole that they put in the coupling?
  6. Hooligan

    Hooligan Rangerholic!!

    Yes...I do not know the purpose...possibly a breather hole

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