The brake system is a critical system that most of the time is overlooked despite its importance. When you notice a soft or squishy feeling when you press down on the brake pedal then that mean something is wrong with your brake master cylinder. The part of the brake system that is attached to the brake booster is your brake master cylinder. It is responsible for releasing the fluid towards the caliper which in turns forces the pistons in the caliper to push the brake pads against the rotor to put a stop to the wheels. The process starts with the pressure on the piston made by the plunger connected to the brake pedal. The pressure caused by the brake pedal pushes more pressure on the pistons which compress the fluid into the circuit and into the caliper. And the brakes are applied as the fluid pushes the pistons towards the brake pads and rotors. On top of the brake master cylinder is a plastic brake fluid reservoir where the brake fluid is contained. In order for the master cylinder to last longer the reservoir needs to be flushed yearly. Realizing the importance of the brakes and its components makes you regularly check it for signs. The soft or squishy feeling when you step on the brake pedal is a sign that there is not much resistance. You will have to 'pump' the brake to regain normal pressure. It would be best to have it check by a mechanic because there might be leaks. If you need to have your Ford Brake Master Cylinder replaced, then just visit our online store. We have a selection of the highest quality master cylinders at discount prices. It is made to meet or exceed OE specifications so it's sure to fit your Ford.