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: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.

2. Remove the battery tray. For additional information, refer to Battery.

3. Disconnect the ABS module electrical connector.

4. NOTE: The brake tubes must be installed in the same location as removed.

Disconnect the master cylinder primary and secondary brake tube-to-Hydraulic Control Unit (HCU) fittings and position both brake tubes aside.

- To install, tighten to 25 Nm (18 lb-ft).

5. NOTE: The brake tubes must be installed in the same location as removed.

Disconnect the 4 brake tube-to-HCU extension tube fittings.

- To install, tighten to 18 Nm (159 lb-in).

6. Remove the 3 HCU bracket-to-frame nuts and the HCU assembly.
- To install, tighten the nuts to 23 Nm (17 lb-ft).

7. NOTE: The brake tubes must be installed in the same location as removed.

Disconnect the 4 HCU extension tube-to-HCU fittings.

- To install, tighten to 18 Nm (159 lb-in).

8. Remove the 2 HCU bracket-to-HCU extension tube retainer nuts and the extension tube retainer assembly.
- To install, tighten the nuts to 9 Nm (80 lb-in).

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

10. To install, reverse the removal procedure.
- Bleed the brake system. For additional information, refer to Brakes and Traction Control.