Brake Fluid: Bleeding

HINT: If any work is performed on the brake system or if air in the brake lines is suspected, bleed the air out of the brake system.

1. FILL RESERVOIR WITH BRAKE FLUID 

   Fluid: SAE J1703 or FMVSS No. 116 DOT3 

   Fig 1: Filling Reservoir With Brake Fluid

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2. BLEED MASTER CYLINDER 

   HINT: If the master cylinder has been disassembled or if the reservoir becomes empty, bleed the air out of the master cylinder.

   1. Using SST, disconnect the brake lines from the master cylinder sub-assy.

      SST 09023-00101

   2. Slowly depress and hold the brake pedal.
      Fig 2: Bleeding Air Out Of Brake System (1 Of 2)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Cover the outer holes with your fingers, and release the brake pedal.
   4. Repeat (b) and (c) 3 or 4 times.
      Fig 3: Bleeding Air Out Of Brake System (2 Of 2)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. BLEED BRAKE LINE 
   1. Connect the vinyl tube to the brake caliper.
   2. Depress the brake pedal several times, then loosen the bleeder plug with the pedal depressed.
   3. When fluid stops coming out, tighten the bleeder plug, then release the brake pedal.

   Torque: 8.3 N.m (85 kgf.cm, 74 in.lbf) 

   4. Repeat (b) and (c) until all the air in the fluid is completely bled out.
      Fig 4: Bleeding Brake Line

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. Repeat the above procedures for each wheel to bleed the air out of the brake line.
4. CHECK FLUID LEVEL IN RESERVOIR
   1. Check the fluid level and add fluid if necessary.

      Fluid: SAE J1703 or FMVSS No. 116 DOT3

      Fig 5: Adding Brake Fluid

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002