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1997 Mercury Marquis Brake problem

Tiny
FORE1NCE
  • MEMBER
  • 1997 MERCURY MARQUIS
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
Replaced the front brakes, rotors, & calipers and ended up with a soft brake pedal on start-up. Took it to a garage and had the master cylinder replaced ( he replaced it three times ) an abs pump replaced plus the brake booster checked. He says he also put 2 quarts of Brake fluid through the system, Still have the soft brake pedal. Any thoughts
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Wednesday, January 15th, 2014 AT 1:48 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Make sure that the pads are sitting correctly in the callipers and that the calliper slide pins are not seized, if this is only after fitting pads I would be checking this first.
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Wednesday, January 15th, 2014 AT 2:49 PM
Tiny
FORE1NCE
  • MEMBER
  • 2 POSTS
Checked and rechecked the pads and sliders their o.K.
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Monday, January 20th, 2014 AT 11:34 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Try a vacuum bleed rather than a conventional pressure bleed, there may be an air lock in the system still.
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Monday, January 20th, 2014 AT 12:13 PM

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