Ranger 2WD V6-3.0L VIN U (1998)
5. Fill the cruise switch with the specified brake fluid.
6. Install the cruise switch.
7. Slowly depress the primary piston or, for in-vehicle priming, have an assistant slowly pump the brake pedal until clear brake fluid flows from both
brake tubes with no air bubbles.
8. If necessary, install the brake master cylinder into the vehicle.
9. Remove the short brake tubes and install the master cylinder outlet tubes.
10. Loosen a brake outlet tube at the 4WABS hydraulic control unit (HCU).
11. Have an assistant depress and hold the brake pedal.
NOTE: Refill the brake master cylinder reservoir as necessary.