2007 TOYOTA SIENNA Service Repair Manual

Page 2593 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BR–20BRAKE  –  BRAKE BOOSTER
BR
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.

Page 2594 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE  –  BRAKE BOOSTERBR–21
BR
(b) Slide the clip and disconnect the vacuum hose from 
the brake vacuum check valve assembly.
(c) Remove the 4 nuts and clevis.
(d) Pull out the brake booster with

Page 2595 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE  –  BRAKE FLUIDBR–3
BR
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:
Was

Page 2596 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BR–4BRAKE  –  BRAKE FLUID
BR
(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 f

Page 2597 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE  –  BRAKE FLUIDBR–5
BR
(d) Perform air bleeding according to "Step 1: Increase" 
on the intelligent tester display.
NOTICE:
Make sure that the master cylinder reservoir 
tank does no

Page 2598 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BR–6BRAKE  –  BRAKE FLUID
BR
(f) Bleed the air from the pressure reduction line 
according to "Step 3: Decrease" on the intelligent 
tester display.
NOTICE:
• Bleed the pressure reductio

Page 2599 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BRAKE  –  BRAKE FLUIDBR–7
BR
(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 complete

Page 2600 of 3000

TOYOTA SIENNA 2007  Service Repair Manual BR–22BRAKE  –  BRAKE BOOSTER
BR
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