1993 Ford Explorer Brakes wont work when car is started.

1993 FORD EXPLORER
76,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MACKPARKS09
  • MEMBER
  • 1 POST
I just put new brake booster, and master cylinder in my explorer, but my brakes are only hard when my explorer is turned off...they get hard when the vehicle is turned of, and I have bleeded them...its just as soon as the explorer is started the brakes get really soft and stop working...any suggestions?

thanks
mack
Dec 29, 2007 at 5:20 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Why did you replaced these parts for what reason? Did you check the vacuum line and the check valve to the booster.
Dec 29, 2007 at 8:56 AM
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ALEX7772006
  • MEMBER
  • 17 POSTS
i had this kind problem but with my ranger
i just went to ford dealership and they took our a wire
and my brakes start to work fine and then my gas milage improved too
ill take a picture of a wire
Dec 31, 2007 at 7:27 PM
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