Brake Proportioning/Combination Valve: Service and Repair
REMOVE1. Raise the vehicle on jack stands or centered on a hoist.
2. Clean any debris away from the proportioning valve, connections, and area.
3. Remove the chassis brake tube from the proportioning valve.
4. Remove the proportioning valve from the rear flex hose which is held stationary by a bracket mounted on the back side of the crossmember.
INSTALL
1. Install the proportioning valve to the rear brake flex hose. Tighten to a torque of 17 Nm (145 inch lbs.).
2. Install the chassis brake tube to the proportioning valve. Tighten the tube nut to a torque of 17 Nm (145 inch lbs.).
3. Bleed the affected brake line.
4. Lower the vehicle to the ground.