Brakes

1991 FORD F-150
167,000 MILES • 5.0L • V8 • 4WD • AUTOMATIC
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RHUETT
  • MEMBER
  • 1 POST
New master cylinder,new booster, new front calipers and pads and hoses. pedal goes to the floor after bleeding. pump pedal six pumps it gets stiff until i let off then back to the floor. not running!
Jun 1, 2017 at 2:01 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
Your description sounds like the rear shoes are out of adjustment or one of the linings has rusted off its frame. The clue is that it takes multiple pedal pumps, then the pedal gets hard, and it goes to the floor again right after it is released, which gives the rear shoes time to retract.
Jun 2, 2017 at 4:31 PM
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