Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Hydraulic Control Unit (HCU)Material:
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.
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.
CAUTION: Electronic modules are sensitive to static electrical charges. The anti-lock brake system (ABS) module can be damaged if exposed to these charges.
NOTE: When installing a new ABS module/hydraulic control unit (HCU) assembly, it must be configured (either by download/upload or uploading the as-built data method).
NOTE: On vehicles equipped with roll stability control (RSC), the ABS module is available separately from the HCU and should be serviced separately. However, if the RSC equipped vehicle requires a new HCU, then the ABS module and the HCU must be installed as an assembly. Make sure to use the most recently released service parts.
All vehicles
1. Disconnect the battery ground cable.
2. Remove the air cleaner and the air cleaner outlet pipe.
3. Disconnect the master cylinder brake tube fittings from the hydraulic control unit (HCU).
^ To install, tighten to 23 Nm (17 lb-ft).
Vehicles with 3.0L engine
4. Disconnect the master cylinder brake tube fittings from the master cylinder and remove the brake tubes.
^ To install, tighten to 23 Nm (17 lb-ft).
All vehicles
5. NOTE: The brake tubes must be installed in the same location as removed.
Disconnect the front brake tube fittings from the HCU.
^ To install, tighten to 15 Nm (11 lb-ft).
6. Disconnect the rear brake tube fittings from the jumper tubes.
^ To install, tighten to 15 Nm (11 lb-ft).
7. Disconnect the electrical connector by rotating the protective cover.
8. Remove the 3 HCU bracket-to-frame bolts and remove the HCU.
^ To install, tighten to 20 Nm (15 lb-ft).
9. To install, reverse the removal procedure.
^ Bleed the brake system.