Toyota RAV4 manuals

Toyota Sienna Service Manual: 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.

NOTICE: Wash the brake fluid off immediately if it adheres to any painted surfaces.

1. REMOVE COWL TOP PANEL SUB-ASSEMBLY OUTER FRONT (See page SP-13)

2. FILL RESERVOIR WITH BRAKE FLUID

ILL RESERVOIR WITH BRAKE FLUID

Fluid: SAE J1703 or FMVSS No. 116 DOT3

NOTICE: Perform the procedure after confirming the sub-tank at the upper of the master cylinder assembly is filled enough.

3. BLEED BRAKE LINE

 BLEED BRAKE LINE

(a) Connect the vinyl tube to the bleeder plug.

(b) Depress the brake pedal several times, then loosen the bleeder plug with the pedal depressed (*1).

(c) At the point when fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*2).

(d) Repeat (*1) and (*2) several times until all the air in the fluid is completely bled out.

(e) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(f) Repeat the above procedure to bleed the air out of the brake line for each wheel.

4. BLEED MASTER CYLINDER

NOTICE: When the air is bled from the master cylinder (3rd chamber), be sure to run the engine.

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

(a) Run the engine at idle.

(b) Connect the vinyl tube to the brake caliper bleeder plug.

(c) Open the brake caliper bleeder plug or wheel cylinder bleeder plug.

BLEED MASTER CYLINDER

(d) Depress the brake pedal several times, then loosen the master cylinder (3rd chamber) bleeder plug, then release the brake pedal (*3).

(e) At the point when the fluid stops coming out, tighten the master cylinder (3rd chamber) bleeder plug, then release the brake pedal (*4).

(f) Repeat (*3) and (*4) several times until the air in the master cylinder is bled out.

(g) Tighten the master cylinder (3rd chamber) bleeder plug .

Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf)

(h) Tighten the brake caliper bleeder plug or wheel cylinder bleeder plug.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

5. BLEED BRAKE LINE

BLEED BRAKE LINE

(a) Connect the vinyl tube to the bleeder plug.

(b) Depress the brake pedal several times, then loosen the bleeder plug with the pedal depressed (*5).

(c) At the point when fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*6).

(d) Repeat (*5) and (*6) several times until all the air in the fluid is completely bled out.

(e) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(f) Repeat the above procedure to bleed the air out of the brake line for each wheel.

6. BLEED BRAKE ACTUATOR (w/ VSC)

NOTICE: After bleeding the air from the brake system, if the height or feel of the brake pedal cannot be obtained, bleed the air from the brake actuator assembly with the intelligent tester by following the procedure below.

(a) Depress the brake pedal more than 20 times with the engine switch off.

(b) Connect the intelligent tester to the DLC3, then turn the ignition switch to the ON position.

NOTICE: Do not start the engine.

(c) Turn the intelligent tester on and select "AIR BLEEDING" on the screen.

NOTICE:

(d) Perform air bleeding according to "Step 1: Increase" on the intelligent tester display.

NOTICE: Make sure that the master cylinder reservoir tank does not become empty of brake fluid.

(1) Connect a vinyl tube to either one of the bleeder plugs.

(2) Depress the brake pedal several times, then loosen the bleeder plug connected to the vinyl tube with the pedal depressed (*7).

(3) When fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*8).

(4) Repeat (*7) and (*8) until all the air in the fluid is completely bled out.

(5) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(6) Repeat the above procedures for the rest of the wheels to bleed the air from the brake line.

(e) Bleed the air from the suction line according to "Step 2: Inhalation" on the intelligent tester display.

NOTICE:

(1) Connect a vinyl tube to the bleeder plug at the right front wheel or the right rear wheel and loosen the bleeder plug.

(2) Operate the brake actuator assembly to perform air bleeding using the intelligent tester (*9).

NOTICE:

(3) Check that the operation has stopped by referring to the intelligent tester display and tighten the bleeder plug (*10).

(4) Repeat (*9) and (*10) until all the air in the fluid is completely bled out.

(5) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(6) For the rest of the wheels, perform air bleeding in the same way as stated in the above procedure.

(f) Bleed the air from the pressure reduction line according to "Step 3: Decrease" on the intelligent tester display.

NOTICE:

(1) Connect a vinyl tube to either one of the bleeder plugs.

(2) Loosen the bleeder plug (*11).

(3) Using the intelligent tester, operate the brake actuator assembly, completely depress the brake pedal, and hold it.

NOTICE:

(4) Tighten the bleeder plug, then release the brake pedal (*12).

(5) Repeat (*11) to (*12) until all the air in the fluid is completely bled out.

(6) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(7) Repeat the above procedures for the rest of the brakes to bleed the air from the brake line.

(g) Bleed the air from the brake line again according to "Step 4: Increase" on the intelligent tester display.

NOTICE:

(1) Connect a vinyl tube to either one of the bleeder plugs.

(2) Depress the brake pedal several times, then loosen the bleeder plug connected to the vinyl tube with the pedal depressed (*13).

(3) When fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*14).

(4) Repeat (*13) and (*14) until all the air in the fluid is completely bled out.

(5) Tighten the bleeder plug completely.

Torque: Disc 8.3 N*m (85 kgf*cm, 73 in.*lbf) Drum 11 N*m (112 kgf*cm, 8 ft.*lbf)

(6) Repeat the above procedures for each brake to bleed the air from the brake line.

(h) Finish "AIR BLEEDING" on the intelligent tester and turn off the tester.

(i) Disconnect the intelligent tester from the DLC3.

(j) Turn the ignition switch to the OFF position.

7. CHECK FLUID LEVEL IN RESERVOIR

(a) Check the fluid level and add fluid, if necessary.

Fluid: SAE J1703 or FMVSS No. 116 DOT3

8. INSTALL COWL TOP PANEL SUB-ASSEMBLY OUTER FRONT

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