Antilock Brakes / Traction Control Systems: Service and Repair
NOTE: Add Ford High Performance DOT 3 Brake Fluid C6AZ-19542-AA or equivalent DOT 3 fluid meeting Ford specification ESA-M6C25-A as necessary throughout this procedure.1. Connect a clear waste line to the LH front bleeder screw.
2. Open the LH front bleeder screw.
3. With the bleeder screw open, cycle the brake pedal 25-30 times or until no more air is seen in the waste line.
NOTE: One cycle of the brake pedal is from the full upright position of the pedal, to full extension of the brake pedal, to the full upright position.
4. Close the LH front bleeder screw.
5. Disconnect the waste line from the LH front bleeder screw.
6. Repeat Steps 2 through 6 for the front right brake, rear left and rear right brakes.
7. Start the engine.
NOTE: The engine must be running to provide battery positive voltage (B+) to the ABS module.
8. Depress the brake pedal to half of the full extension position.
9. Perform NGS program procedure for ABS service bleed.
NOTE: Performing the NGS program routine drives entrapped air from the otherwise inaccessible lower sections of the ABS valve into the upper sections (accessible by bleeding at the brakes). Subsequent bleeding removes the air from the system.
- Attach the Rotunda New Generation Star (NGS) Tester 007-00500 according to manufacturer's instructions and follow the menus and prompts.
- From the "DDS Functions" menu, chose "4WABS. "
- From the 4-WABS menu, choose "Function Tests."
- From the Function Test menu, choose "Bleed Procedure" and follow the prompts.
10. Perform a minimum of 7 conventional pressure bleed cycles on the LH and RH front brakes.
NOTE: One conventional pressure bleed cycle consists of advancing the brake pedal to its extended position, opening the bleeder screw, allowing fluid to be released into the waste containers, closing the wheel cylinder bleeder screw and releasing the brake pedal to its full upright position.
11. Repeat Steps 9 and 10 two times. However, on the last bleed cycle, make sure to bleed the rear brakes to ensure that all air is removed.