Master Cylinder: Notes
WARNING: This page is about a different car, the 2004 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
The brake master cylinder contains a common plastic brake master cylinder reservoir and low fluid level indicator combined in one assembly. The brake master cylinder is a dual piston type. The brake master cylinder operates as follows: When the brake pedal is depressed, pressure is applied by mechanical linkage to the primary and secondary piston. Brake master cylinder pistons apply hydraulic pressure to the 2 opposed hydraulic circuits. Brake master cylinder cannot be overhauled, install a new master cylinder only.