Question about 1999 Oldsmobile Alero
Then you have to have leakage someshere, or, the Master Cylinder is bypassing brake fluid under & around the seals within itself, needing replacement.
The hydraulic system is straightforward. Push the brake pedal, it pushes a rod that pushes the seals inside of the master cylinder that pushes the brake fluid through the lines to the porpotioning valve, which pushes the fluid to each wheel & if there are pads or shoes at those wheels and nothing leaking, the pads/shoes have to work unless the master cylinder is leaking.
Check inside of the vehicle, around & under the carpet behind the brake pedal. If you ae losing or leaking fluid & you can't find it anywhere else, you should find it in the floorboard of the car.
If the system has been opened lately for repairs, then this could be due to air in the system and the need to bleed the brakes. You'll need to have an assistant help with that, work from the farthest point away from the master cylinder with bleeding at each wheel & work to the closest one last. If you do this, keep the master cyliinder full at all times after each brake at each wheel is done. good luck
Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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