Removal and Installation

WARNING: Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with eyes. Wash hands thoroughly after handling. If brake fluid contacts eyes, flush eyes with running water for 15 minutes. Get medical attention if irritation persists. If taken internally, drink water and induce vomiting. Get medical attention immediately.

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.

Disconnect the battery negative cable. For additional information, refer to BATTERY DISCONNECT .
Remove the air cleaner and the air cleaner outlet pipe. .
Disconnect the electrical connector.

Fig 1: Disconnecting Electrical Connector
Courtesy of FORD MOTOR CO.
Disconnect the brake lines.

Fig 2: Disconnecting Brake Lines
Courtesy of FORD MOTOR CO.
Remove the bolt.

Fig 3: Removing Bolt
Courtesy of FORD MOTOR CO.
Remove the bolts and the HCU.

Fig 4: Removing Bolts And HCU
Courtesy of FORD MOTOR CO.

NOTE: The 4x2 module cannot be interchanged with the 4x4 module. The 4x4 module is interchangeable with the 4x2 module.
Remove the screws and the control module, if necessary.

Fig 5: Removing Screws And Control Module
Courtesy of FORD MOTOR CO.

NOTE: Bleed the HCU after performing this procedure. For additional information, refer to BLEEDING BRAKE SYSTEM .

To install, reverse the removal procedure.