Toyota Sienna Service Manual: Removal

Toyota Sienna Service Manual / Brake control / Brake booster / Removal

NOTICE:

Do not adjust the brake booster push rod.
Do not change the combination of the diameter converting unit and brake.

1. REMOVE FRONT WHEEL

2. DRAIN BRAKE FLUID

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

3. SEPARATE BATTERY NEGATIVE TERMINAL

4. REMOVE FRONT DOOR SCUFF PLATE LH

5. REMOVE COWL SIDE TRIM BOARD LH

(a) Remove the nut and cowl trim board plate LH.

6. REMOVE INSTRUMENT PANEL FINISH PANEL SUBASSEMBLY LOWER LH

(a) Remove the 2 bolts and instrument panel finish panel sub-assembly lower LH.

7. REMOVE INSTRUMENT PANEL SAFETY PAD INSERT SUB-ASSEMBLY NO. 1

(a) Remove the 4 bolts and instrument panel safety pad insert sub-assembly No. 1.

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

9. REMOVE AIR CLEANER ASSEMBLY WITH HOSE

10. REMOVE BRAKE ACTUATOR ASSEMBLY (w/o VSC) SST 09023-00101

HINT: See page BC-184.

11. REMOVE ABS & TRACTION ACTUATOR ASSEMBLY (w/ VSC)

SST 09023-00101

HINT: See page BC-179.

12. REMOVE BRAKE LINE

(a) Remove the front brake tube No. 1, front brake tube No. 2, front brake tube No. 3 and front brake tube No. 4.

(b) Remove the rear brake tube No. 1 and rear brake tube No. 2.

13. REMOVE PUSH ROD PIN

(a) Remove the push rod pin from the brake booster push rod.

14. REMOVE BRAKE MASTER CYLINDER ASSEMBLY

(a) Slide the clip and disconnect the brake master cylinder reservoir hose from the brake master cylinder union.

REMOVE BRAKE MASTER CYLINDER ASSEMBLY

(b) Slide the clip and disconnect the vacuum hose from the brake vacuum check valve assembly.

(d) Pull out the brake booster with master cylinder.

15. REMOVE BRAKE BOOSTER GASKET

(a) Remove the brake booster gasket from the brake booster with master cylinder.

16. REMOVE BRAKE VACUUM CHECK VALVE ASSEMBLY

(a) Remove the brake vacuum check valve assembly and check valve grommet from the brake booster assembly.

On-vehicle inspection

1. INSPECT BRAKE BOOSTER (a) Air tightness check. (1) Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly. HINT: If the pedal goes down farthes ...

Inspection

1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Check the vacuum check valve. (1) Slide the clip and disconnect the vacuum hose. (2) Remove the vacuum check valve. (3) Check that there ...

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