2007 Buick Rendezvous Brake Proportioning Valve

After relieving the fuel line pressure, you can drain the cooling system. Then you need to remove the coolant reservoir, the left front cross brace, the powertrain control module (PCM) cover, the PCM and set, the air cleaner outlet duct, and the air cleaner. Then you need to remove the fuel lines, the heater hose, the fuel lines, and the fluid level sensor switch. After disconnecting the brake lines from the master cylinder and removing the master cylinder, you can remove the bracket, the Brake Booster vacuum hose, the knee bolster, the booster push pin retaining clip, and the washer. After that, you can remove the brake booster push rod, the brake booster mounting nuts, the 2 front engine mounts, nuts, and bolts. Then you need to rotate the engine and remove the brake booster.

You can remove the Brake Master Cylinder from the vehicle. Then you need to secure the mounting flange of the brake master cylinder, clean the outside of the master cylinder reservoir, and remove the reservoir cap and diaphragm from the reservoir. Then you can remove the master cylinder reservoir and primary piston assembly. After that, you can 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.

You cannot drive the vehicle until it is diagnosed or repaired.