Automotive/1994 buick lesabre

Advertisement

Expert: - 2/3/2009


Question
i have a 1994 buick lesabre and when i go to stop the petal goes to the floor and the car takes off. and the brake light stays on. so i checked for leaks but their are none so what can the problem be?

Answer
The Master Cylinder is probably shot, which would explain the 'Brake System Warning Light' coming on. The only cure, a new Master Cylinder. Oh, and a Master Cylinder does not have to leak externally in order to have failed. If the internal seals are sufficiently worn, they can no longer build pressure, and the fluid simply passes by the Piston, that is activated by pressing on the Brake Pedal.

Automotive

All Answers

Answers by Expert:

Ask Experts

Volunteer

Ben Deutschman

Expertise

Questions ONLY related to Chrysler/Plymouth/Dodge Slant-Sixes from 1960-1975. You can ask me about Engine Timing, general specifications, do`s and don`ts, and details such as proper installation of `Spark Plugs` on the 1960-74 `Slant-Sixes.`

Experience

I own and work on a 1960 plymouth, powered by a 'Slant-Six', have also worked on a 1968 'Slant-Six', a 1975, a 1964, and and 1970 'Slant-Six'

Organizations
Ben Deutschman
POCI Legislative Liaison
President Of The NY/NJ Slant-Six Club Of America
http://www.poci.org
http://bencar.freeyellow.com/76TAPage.html
http://bencar.freeyellow.com/benscarpage.html
http://clubs.hemmings.com/frameset.cfm?club=nynjslant6 (NY/NJ Slant-Six Club Of America Website)


Publications
Smoke Signals (Pontiac-Oakland Club International)
Hemmings Motor News


Education/Credentials
B.A 'Labor Relations', 'Rutgers University' (Livingston College Campus)

©2012 About.com, a part of The New York Times Company. All rights reserved.