Toyota Tundra. Manual — part 1757

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION

1

INSPECT AIR PUMP ASSEMBLY

a

Measure the resistance according to the value(s) in the table below

Standard resistance

AIR PUMP STANDARD RESISTANCE SPECIFICATION

Fig. 23: Inspecting Air Pump Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the air pump assembly

b

Check the operation of the air pump

1

Check that air does not flow from port A to port B

Tester Connection Condition Specified Condition

1 - 2

20°C (68°F)

0 4 to 1 0 ohms

1 - Body ground

Always

10 kohms or higher

2 - Body ground

2009 Toyota Tundra

2009 ENG NE Emission Control (3UR-FE) - Tundra

Fig. 24: Identifying Operation Of Air Pump
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Apply battery voltage across terminals 1 and 2

Fig. 25: Applying Battery Voltage Across Terminals 1 And 2
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Check that air flows from port A to port B If the result is not as specified, replace the air
pump assembly

INSTALLATION

1

INSTALL AIR PUMP ASSEMBLY

a

Connect the 6 air pump insulators to the air pump and install the air pump to the bracket

NOTE:



Do not operate the air pump continuously for 2 minutes or
more.



When operating the air pump, wait 5 minutes until the
pump has cooled down between each operation. If the
pump has not cooled down sufficiently, the motor will burn
out.

2009 Toyota Tundra

2009 ENG NE Emission Control (3UR-FE) - Tundra

Fig. 26: Identifying Air Pump Assembly Insulators
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Attach the 2 wire harness clamps to the bracket

2

CONNECT NO. 1 AIR INJECTION SYSTEM HOSE

a

Connect the 2 hoses to the air pump

HINT:

Insert the hoses until the hose ends are aligned with the stoppers

Fig. 27: Connecting Hoses To Air Pump
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

INSTALL AIR PUMP INLET

a

Connect the air pump inlet to the 2 No 1 air injection system hoses

HINT:

Insert the inlet until the inlet stoppers are aligned with the hose ends

2009 Toyota Tundra

2009 ENG NE Emission Control (3UR-FE) - Tundra

Fig. 28: Connecting Air Pump Inlet To 2 No. 1 Air Injection System Hoses
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Install the 2 bolts

Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)

4

INSTALL AIR PUMP ASSEMBLY WITH BRACKET

a

Install the air pump to the vehicle

1

Insert the bracket tab into the slot and insert the stud bolt into the bracket hole as shown in
illustration A Then slide the bracket

Fig. 29: Identifying Stud Bolt Into Bracket Hole
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Insert the bracket tab into the slot shown in illustration B

3

Install the 2 bolts and 2 nuts

2009 Toyota Tundra

2009 ENG NE Emission Control (3UR-FE) - Tundra