Question about Toyota 4Runner

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Abs light is permanently on and signal sounds. Also the brake light is on. We have to floor the brake pedal to stop the car.Is it possible the the hydraulic pump booster is defective and has to be replaced? What do you think are other possible causes of such other than leaking? I'm afraid to drive it since brake might not work.

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Well if you don't have a leak in the brakes hydraulic system then I would say you either have a broken/disconnected power brake booster vacumn line(booster is mounted to the rear of the master cylinder pie like disk shape), a bad power brake booster
Immediatley have this cars brake ABS system computer scanned for codes to find out what the ABS light being on is about, that is usually due to a broken wheel sensor, but a code scan will reveal the truth.
So in reality you have a two part problem, as long as you have a full master cylinder revealing no leaks, which are: 1) brake booster/defunct or vac. line problem. 2) ABS system scan for wheel sensor or the like.
Hope this Works!!!
Happy Motoring!!

Posted on Aug 08, 2010

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