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Home >> Toyota >> 1992 >> 4Runner 2D Utility, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Bleeding Brake System

Bleeding Brake System

CAUTION: Brake fluid will damage painted surfaces. If brake fluid is spilled on painted surface, wipe off immediately and clean with alcohol. Use only DOT 3 brake fluid from a sealed container. DO NOT mix brake fluid with any other type.
  1. Brake bleeding procedure for ABS is the same as brake bleeding procedure for non-ABS. If power steering hose is disconnected or actuator is removed, go to next step. If master cylinder is rebuilt or reservoir is empty, bleed master cylinder first. Bleed wheels in sequence. Start on wheel with longest hydraulic line, and work toward wheel with shortest hydraulic line.
  2. Fill fluid in power steering reservoir. Start engine. With engine speed less than 1000 RPM, turn steering wheel from side to side against lock 2-3 times.
  3. Turn engine off. Connect a clear hose to bleeder plug located on top of steering gear. See Fig 1. Start engine. Turn steering wheel from side to side against lock 2-3 times.
    Fig 1: Connecting Hose On Bleeder Plug
    G91C04117Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Place wheels in straight-ahead position. Loosen bleeder plug. Tighten bleeder plug when bubbles no longer exist in clear hose. Ensure power steering fluid level does not rise and foaming of fluid does not exist. If fluid level rises or foaming occurs, repeat procedure until air is no longer present. Tighten bleeder plug to 69 INCH lbs. (8 N.m).
  5. Bleed brake system with engine running, then bleed system again with engine off. See step 1). Tighten bleeder screw to 96 INCH lbs. (11 N.m).
  6. Bleed power steering system again. See steps 2) - 4). Turn ignition off. Disconnect actuator electrical connector. Disconnect ABS relay. Connect Actuator Checker (09990-0150) to actuator and ABS relay. Connect actuator checker positive and negative cables to battery.
    CAUTION: Master cylinder may be damaged if these cautions are not followed. DO NOT press power switch for more than 10 seconds. DO NOT press POWER switch without depressing brake pedal. DO NOT release brake pedal while pressing power switch.
  7. Start engine. Turn actuator checker selector switch to AIR BLEED position. See Figure. Strongly press and hold brake pedal. Press power switch for 3 seconds and then release. Repeat this procedure 5 times.
  8. Ensure power switch is released, then release brake pedal. Check brake and power steering fluid. Fill as necessary. Remove actuator checker from vehicle.
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