REMOVAL & INSTALLATION
See Figure 11985-86
The height sensing valve is not repairable and must be replaced if found to be defective.
- Raise and support the rear and allow the rear suspension and axle to hang in the full rebound position.
The rear shock absorbers must be connected to the rear axle.
- Remove both rear wheels.
- Disconnect both hydraulic brake lines from the sensing valve.
- Disconnect the linkage from the sensing valve.
If the linkage is damaged a new sensing valve and new linkage must be installed.
- Remove the valve sensing valve from its bracket.
- Place the new valve on the bracket and tighten the mounting bolts
- Install the two brake tubes to the sensing valve.
- Connect the linkage to the sensing valve shaft. Squeeze the plastic bushing of the link assembly onto the serrated section of the valve shaft using large groove joint pliers
The pivot joint of the linkage must face towards the rear of the vehicle.
- Install the nut securing the link to the valve shaft and tighten to 8 ft. lbs. (10 Nm).
- Bleed the brake system.
- Install both rear wheels.
- Lower the vehicle and check for proper operation.
The sensing valve will automatically become operational when the suspension is in the empty vehicle position.