Toyota Tundra. Manual — part 974

Fig. 31: Identifying Brake Master Cylinder Replacement Components With Torque Specification (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REMOVAL

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTE:



After the ignition switch is turned OFF, the navigation system
requires approximately 90 seconds to record various types of
memory and settings. As a result, after turning the ignition switch
OFF, wait 90 seconds or more before disconnecting the cable from

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

2. DRAIN BRAKE FLUID

3. DISCONNECT BRAKE FLUID LEVEL WARNING SWITCH CONNECTOR

a. Disconnect the brake fluid level warning switch connector.

Fig. 32: Identifying Brake Fluid Level Warning Switch Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. DISCONNECT FRONT NO. 1 BRAKE TUBE

a. Using SST, disconnect the brake tube (labeled A) from the brake master cylinder.

SST 09023-00101

Fig. 33: Identifying Brake Tube Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

the negative (-) battery terminal.



Some systems need to be initialized after the cable is reconnected
(see INITIALIZATION ).

NOTE:

Immediately wash off any brake fluid that comes into contact with any
painted surfaces.

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

5. DISCONNECT REAR NO. 1 BRAKE TUBE

a. Using SST, disconnect the brake tube (labeled B) from the brake master cylinder.

SST 09023-00101

6. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY

a. Remove the 2 nuts and brake master cylinder from the brake booster.

Fig. 34: Identifying Brake Master Cylinder Nuts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Remove the brake master cylinder seal from the brake master cylinder.

DISASSEMBLY

1. REMOVE BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY

a. Using a T25 "TORX" socket wrench, remove the screw and reservoir.

Fig. 35: Identifying Brake Master Cylinder Screw And Reservoir
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Remove the brake master cylinder after depressing the brake pedal
several times and bleeding the vacuum pressure from inside the brake
booster.

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

2. REMOVE MASTER CYLINDER RESERVOIR GROMMET

a. Remove the 2 grommets.

REASSEMBLY

1. INSTALL MASTER CYLINDER RESERVOIR GROMMET

a. Apply lithium soap base glycol grease to the 2 grommets and install them onto the master cylinder

body.

2. INSTALL BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY

a. Install the master cylinder reservoir onto the master cylinder body.

Fig. 36: Installing Master Cylinder Reservoir Onto Master Cylinder Body
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using a T25 "TORX" socket wrench, install the screw.

Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)

INSTALLATION

1. INSTALL BRAKE MASTER CYLINDER SUB-ASSEMBLY

a. Install a new brake master cylinder seal onto the brake master cylinder.

b. Install the brake master cylinder with 2 new nuts.

Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf)

2009 Toyota Tundra

2009 BRAKES Brake - Tundra