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    Ford Pick-Ups/Expedition/Navigator 1997-2000

    Bleeding the ABS System

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    CAUTION
    Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with the eyes and wash your hands thoroughly after handling brake fluid. If you do get brake fluid in your eyes, flush your eyes with clean, running water for 15 minutes. If eye irritation persists, or if you have taken brake fluid internally, IMMEDIATELY seek medical assistance.

    If equipped with the 4 wheel anti-lock brake system and the Hydraulic Control Unit (HCU) has been replaced or is suspected of containing trapped air, bleed the brake system using the procedure below. Conventional brake system bleeding cannot remove the air trapped in the lower portion of the HCU.

    If a spongy brake pedal is present and air in the hydraulic control unit is suspected, use the following procedure:

    1. Bleed the brake system as outlined in the conventional bleeding procedure.
    2.  
    3. Connect a New Generation Star (NGS) tester or equivalent scan tool, to the serial data link connector below the instrument panel as though retrieving codes.
    4.  
    5. Make sure the ignition switch is in the RUN position.
    6.  
    7. Follow the instructions on the NGS screen. Verify correct vehicle and model year go to the "Diagnostic Data Link" menu item, choose ABS Module, choose "Function Tests", and choose "Service Bleed".
    8.  


    WARNING
    Do not allow the brake master cylinder to run dry of brake fluid during the brake bleeding procedure. Only use new DOT 3 or equivalent brake fluid from a closed container.

    1. Bleed the right-front wheel as follows:
      1. Open the caliper bleed screw and pump the brake pedal for 3 seconds. Repeat the procedure again.
      2.  
      3. When the fluid runs clear, begin the program and continue to pump the brake pedal.
      4.  
      5. Continue bleeding for approximately 1 to 2 minutes after the program ends and then tighten the bleed screw.
      6.  

    2.  
    3. Repeat the bleeding procedure to the left-front, left-rear and finally the right-rear wheel.
    4.  
    5. Remove the pressure bleeding device and adjust the brake fluid level.
    6.  
    7. Road test the vehicle and check for proper brake system operation.
    8.  

     
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