2005 Buick Park Avenue Brake Master Cylinder

First, you need to install the brake master cylinder reservoir to the master cylinder, bench bleed the master cylinder, and install the master cylinder to the vacuum brake booster. Then, please remove the plugs from the brake pipes, and install the brake pipes to the master cylinder. Finally, you should connect the electrical connector to the brake fluid level sensor, and bleed the hydraulic brake system.

First, you need to disconnect the electrical connector from the brake fluid level sensor and disconnect the brake pipes from the master cylinder. Then, please plug the open brake pipe fitting ends, and remove the master cylinder. Finally, you should remove the reservoir from the master cylinder.

First, you need to clean the interior and exterior of the master cylinder, the secondary piston, and the return spring, inspect the master cylinder bore, inlet and cutlet ports, the secondary piston, and the return spring for cracks, scoring, pitting, or corrosion, and dry the master cylinder and the individual components. Then, please lubricate the master cylinder bore, the secondary piston, the return spring, and all of the individual overhaul components, assemble the lubricated, new primary seal and retainer, and new secondary seal onto the secondary piston, install the return spring and secondary piston assembly into the cylinder bore, install the primary piston assembly into the cylinder bore. Finally, you should depress the primary piston and install the new Piston retainer, install the master cylinder reservoir to the master cylinder, install the reservoir cap and diaphragm try the reservoir, and install the master cylinder to the vehicle.

First, you need to remove the brake master cylinder, secure the mounting flange of the brake master cylinder in a bench vise, and clean the outside of the master cylinder reservoir on and around the reservoir cap. Then, please remove the reservoir cap and diaphragm from the reservoir, inspect the reservoir cap and diaphragm for cuts or cracks, nicks, or deformation, and remove the master cylinder reservoir from the master cylinder. Finally, you should depress the primary piston and remove the piston retainer, remove the primary piston assembly from the cylinder bore, plug the cylinder inlet ports and the rear outlet port, and discard the primary piston assembly, the piston retainer, and the seals and seal retainer from the secondary piston.

First, you need to inspect the reservoir for cracks or deformities, clean and dry the reservoir, and lubricate the new seals and the reservoir bayonets. Then, please install the seals, install the reservoir onto the master cylinder, and tap in the reservoir retaining pins to secure the reservoir. Finally, you should fill the master cylinder reservoir, install the brake fluid level sensor, and install the master cylinder in the vehicle.