Brake Proportioning/Combination Valve: Service and Repair

Proportioning Valve Replacement

Removal Procedure




1. Disconnect the brake lines from the proportioning valves.
2. Remove the valves from the master cylinder body.


Installation Procedure




Caution: Refer to Brake Fluid Caution (Brake Fluid Caution).

Notice: Refer to Fastener Notice (Fastener Notice).

Important: Since these valves are adjusted in pairs to the correct control range, they must be replaced in pairs.


1. Install the proportioning valves to the cylinder body.

Tighten the proportioning valves to 40 N.m (30 lb ft).

2. Connect the brake lines to the valves.

Tighten the brake lines to 16 N.m (12 lb ft).

3. Bleed the braking system. Refer to Hydraulic Brake System Bleeding (Manual) (Service and Repair).