RAM 2500 Truck 4WD V8-5.9L VIN Z LDC (1998)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Front Antilock Valve Replacement
NOTE: If the antilock control assembly needs to be replaced, the rear axle type and tire revolutions per mile must be programed into the new Controller
Antilock Brake (CAB).
REMOVAL
1. Disconnect battery negative cable.
Harness Connector Locks
2. Push the harness connector locks to release the locks, then remove the connectors from the CAB.
HCU Brake Lines
3. Disconnect brake lines from Hydraulic Control Unit (HCU).
4. Remove the two mounting bolts on either side of the assembly which attach the assembly to the mounting bracket.
5. Tilt the assembly upward were the brake lines attach and remove the assembly from the mounting bracket.
INSTALLATION
1. Install the assembly into the mounting bracket.
2. Install the mounting bolts and tighten to 12 Nm (102 inch lbs.).
3. Connect the CAB harnesses.
4. Connect the brake lines to the HCU. Tighten brake line fittings to 19 - 23 Nm (170 - 200 inch lbs.).
5. Connect battery.
6. Bleed brake system.
