Brake Pedal Loosee

Low Brake Pedal Pressure

My brake pedal slowly losing pressure goes to the floor and then I have to pump it up again

If you break fluid level is correct and your break pedal goes down to the floor means that your master cylinder is going bad and you might loose your breaks completely if not checked or replaced. Your breaking system is down to the last O ring inside the master cylinder, once that rubber O rings goes you will not have any breaks at all. Master cylinders have a number of rubber O rings that work like a plunger or piston that produce pressure within the breaking system. When the first one wears down due to age, your pedal begins to loose break pressure and you have to pump your breaks several times to gain breaking. You are now down to the last rubber O ring and a warning that your master cylinder needs to be checked. You can still use your breaks but only for a few days before the other rubber O ring gives out too. Once both O rings give out you completely loose your breaks.


That is a sign of air in the system that can be caused by a couple things ie,brake master kits sucking air,possible brake fluid leak so you must check all wheel cylinders and obvious brake fluid level.

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