Hydraulic Control Assembly - Antilock Brakes: Service and Repair

Hydraulic Control Unit (HCU)













Removal and Installation

WARNING: Do not use any fluid other than clean brake fluid meeting manufacturer's specification. Additionally, do not use brake fluid that has been previously drained. Following these instructions will help prevent system contamination, brake component damage and the risk of serious personal injury.

WARNING: Carefully read cautionary information on product label. For EMERGENCY MEDICAL INFORMATION seek medical advice. In the USA or Canada on Ford/Motorcraft products call: 1-800-959-3673. For additional information, consult the product Material Safety Data Sheet (MSDS) if available. Failure to follow these instructions may result in serious personal injury.

NOTICE: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water.

1. Position the engine coolant degas bottle aside.

1. If equipped, detach the wiring harness retainer from the degas bottle.

2. Remove the bolt.
- To install, tighten to 9 Nm (80 lb-in).

3. Remove the nut.
- To install, tighten to 9 Nm (80 lb-in).





2. Recover the refrigerant. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.

3. Remove the condenser-to-evaporator line and compressor manifold and tube bracket bolts.
- To install, tighten to 6 Nm (53 lb-in).





4. Remove the condenser-to-evaporator line and compressor manifold and tube fitting nuts. Disconnect the fittings.
- Discard the gasket seals.

- To install, tighten to 15 Nm (133 lb-in).





5. Disconnect the ABS module electrical connector.

6. Disconnect the brake tube fittings.
- To install:
- tighten the front and rear brake tube fittings to 20 Nm (177 lb-in).

- tighten the master cylinder brake tube fittings to 27 Nm (20 lb-ft).

7. Remove the HCU bracket-to-HCU bolt.
- To install, tighten to 9 Nm (80 lb-in).

8. Remove the HCU.

9. NOTE: Make sure the HCU and ABS module are clean and free of any brake fluid or foreign material before separating the components.

To install, reverse the removal procedure.

- Install new O-ring seals and new gasket seals.

- Add the correct amount of clean PAG oil. For additional information, refer to the Refrigerant Oil Adding procedure in Climate Control System - General Information and Diagnostics Refrigerant Oil Adding

- Bleed the brake system. For additional information, refer to Brake System - General Information Brake System Bleeding.

10. Evacuate, leak test and charge the refrigerant system. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging