1994 Mercury Villager when you press the brakes

Tiny
EDGAR5
  • MEMBER
  • 1994 MERCURY VILLAGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 210,000 MILES
When I press my brakes in a stop or red light my car starts to accelerated and the pedal goes to the ground. Took it to a garage they told me it was the master cylinder. Change it and it still doing the same thing. They charge me $ 250.00. What else could it be the problem. I think it may be the Booster. How to check it.
Thursday, November 4th, 2010 AT 10:04 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
If the pedal starts good and then drops slowly, it's called bypassing. If you are not losing any fluid, the most common cause is a bad master cylinder but in some rare cases it can also happen in the ABS unit, especially if it is a rear wheel only system.
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Friday, November 5th, 2010 AT 7:36 AM

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