With Antilock Brakes

GENERAL INFORMATION
If premature rear wheel skid occurs on hard brake application, it could be an indication that a malfunction has occurred with one of the proportioning valves.

One proportioning valve controls the right rear brake, and the other proportioning valve controls the left rear brake. Therefore, a road test to determine which rear brake slides first is essential. Once the wheel which is skidding first is determined, use the following procedure to replace the proportioning valve.

REMOVE

Proportioning Valve Location:

1. Remove the chassis brake tubes from the proportioning valve controlling the rear wheel of the vehicle which has premature wheel skid.
2. Remove the proportioning valve from the rear brake chassis tube.

INSTALL
1. Install the proportioning valve in the chassis brake tube.
2. Tighten both tube nuts on the chassis brake tubes into the proportioning valve to a torque of 17 Nm (145 inch lbs.).
3. Bleed the affected brake line.