Question about 1993 Ford Mustang

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1993 ford mustang brake pedal goes down on its own and brakes

1993 ford mustang brake pedal goes down on its own and starts braking.
replaced brake hoses both front and installed rebuilt master cylinder kit. no change. Wire tied a trampoline spring to pedal to keep up and brakes work fine otherwise. Any ideas?? thank you in advance. RonB

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Check the vacuum brake booster and check valve maybe there is a problem there that is amplifying the vacuum inside the booster and applying the brakes. I hope this helps, let me know.

Posted on Aug 05, 2010

  • Jeff Hammack
    Jeff Hammack Aug 05, 2010

    Also the booster may be broken internally.

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