THE BRAKE PEDAL GOES TO THE FLOOR BUT THEN LATER IT BUILT PREASSURE AND WAS FINE NOW TODAY DID IT AGAIN W.T.F.

  • Tiny
  • biker-24-7
  • 2002 Ford Ranger
  • 88,000 miles

It has full fluid and does not seem to have any leaks near the master cylinder

Thursday, October 6th, 2011 AT 8:35 PM

3 Answers

  • Tiny
  • BMRFIXIT
  • Expert
  • 19,554 posts

With no lose of fluid 1st to suspect would be the master cylinder

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Thursday, October 6th, 2011 AT 8:52 PM
  • Tiny
  • Jason123
  • Member

Could be the seal to the master cylinder to check pour soapy water where the cylinder and the firewall meet

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Friday, October 7th, 2011 AT 5:33 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

You can't check it like that. There are internal plungers in there that, if bad, will allow brake fluid to bypass and the pedal go to the floor. Make sure there are no leaks at any of the wheels or the steel brake lines. One other thing is the rubber brake hose. Make sure they don't expand when you press on the brake.

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Sunday, October 9th, 2011 AT 5:00 AM

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