How do you find the source of a brake fluid leak?
First check the fluid level in the clutch master cylinder to see if it is getting low. If it is low on fluid then you have a slave cylinder leaking.
17/05/2010�� Re: How to Tell if Brake Booster or Master Cylinder is Bad 05/17/2010 10:20 PM Just a FYI for anyone who may have problems, especially if they are having to pump the brakes to stop, or it will stop sometimes, and then other times it just goes strait to the floor (spungy feeling).
These sensors are meant to detect any problem with the vehicle�s brake fluid pressure, which is generated by the master cylinder. If they detect that the pressure has dropped, it is possibly due to a problem with the master cylinder. Such issues may also ignite a Brake Warning Light too.