Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Hydraulic Control Unit (HCU)Material:
Removal and Installation
WARNING: Use of any other than approved DOT 3 brake fluid will cause permanent damage to brake components and will render the brakes inoperative. Failure to follow these instructions may result in 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 personal injury.
CAUTION: 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. Remove the battery tray.
2. Disconnect the low brake fluid warning indicator switch electrical connector.
1 Pull back the tab.
2 Press the clips.
3 Disconnect the electrical connector.
3. CAUTION: Make sure the filler cap does not become contaminated.
Remove the reservoir filler cap.
4. Using a suitable clean suction device, drain the reservoir.
5. Install the brake fluid reservoir cap.
6. Disconnect the battery junction box (BJB) electrical connectors.
7. Disconnect the BJB from the bracket and position aside.
^ Press the locking tabs.
8. Disconnect the ABS module electrical connector by rotating the connector.
9. CAUTION: Cap the brake tube connections to prevent fluid loss or dirt contamination.
Disconnect the HCU brake tubes.
^ To install, tighten to 18 Nm (13 ft. lbs.).
10. Remove the brake lines from the clips.
11. Disconnect the wiring harness from the wheelhouse assembly.
12. Remove the 3 HCU bracket-to-frame nuts.
^ To install, tighten to 9 Nm (80 inch lbs.).
13. Remove the 2 HCU-to-bracket bolts and separate the HCU from the support bracket.
^ To install, tighten to 9 Nm (80 inch lbs.).
14. To install, reverse the removal procedure.
^ Bleed the brake system.