Last Modified: 11-29-2007 1.6 A
Service Category: Engine/Hybrid System Section: Intake/Exhaust
Model Year: 2008 Model: Sequoia Doc ID: RM000002H9Y00IX
Title: 2UZ-FE INTAKE / EXHAUST: EXHAUST PIPE: INSTALLATION (2008 Sequoia)

INSTALLATION

1. INSTALL MONOLITHIC CONVERTER PROTECTOR

(a) Install the 4 converter protector stays and monolithic converter protector with the 4 bolts and 4 nuts.

Torque: 11 N·m (107 kgf·cm, 8 ft·lbf)

HINT:

Install the monolithic converter protector within the angle range show in the illustration.

2. INSTALL HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

(a) Using SST, install the heated oxygen sensor.

SST: 09224-00010

  • without SST

Torque: 44 N·m (449 kgf·cm, 33 ft·lbf)

  • with SST

Torque: 40 N·m (408 kgf·cm, 30 ft·lbf)

HINT:

  • Use a torque wrench with a fulcrum length of 300cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION (2008 Sequoia) .
  • Make sure SST and wrench are connected in a straight line.

3. INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

(a) Using SST, install the air fuel ratio sensor.

SST: 09224-00010

  • without SST

Torque: 44 N·m (449 kgf·cm, 33 ft·lbf)

  • with SST

Torque: 40 N·m (408 kgf·cm, 30 ft·lbf)

HINT:

  • Use a torque wrench with a fulcrum length of 300 cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION (2008 Sequoia) .
  • Make sure SST and wrench are connected in a straight line.

4. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY

(a) Install the new gasket to the front No. 2 exhaust pipe assembly.

(b) Install the front No. 2 exhaust pipe assembly with the 3 new nuts.

Torque: 54 N·m (554 kgf·cm, 40 ft·lbf)


(c) Connect the heated oxygen sensor connector.

(d) Connect the air fuel ratio sensor connector.

5. INSTALL NO. 1 MONOLITHIC CONVERTER PROTECTOR

(a) Install the 4 converter protector stays and No. 1 monolithic converter protector with the 4 bolts and 4 nuts.

Torque: 11 N·m (107 kgf·cm, 8 ft·lbf)

HINT:

Install the No. 1 monolithic converter protector within the angle range show in the illustration.

6. INSTALL FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY

(a) Install the new gasket to the front No. 2 exhaust pipe assembly.

(b) Connect the front No. 3 exhaust pipe sub-assembly to the exhaust pipe support.

(c) Install the front No. 3 exhaust pipe sub-assembly with the 2 bolts and 2 nuts.

Torque: 48 N·m (489 kgf·cm, 35 ft·lbf)

7. INSTALL NO. 1 MONOLITHIC CONVERTER PROTECTOR

(a) Install the 4 converter protector stays and No. 1 monolithic converter protector with the 4 bolts and 4 nuts.

Torque: 11 N·m (107 kgf·cm, 8 ft·lbf)

HINT:

Install the No. 1 monolithic converter protector within the angle range show in the illustration.

8. INSTALL MONOLITHIC CONVERTER PROTECTOR

(a) Install the 4 converter protector stays and monolithic converter protector with the 4 bolts and 4 nuts.

Torque: 11 N·m (107 kgf·cm, 8 ft·lbf)

HINT:

Install the monolithic converter protector within the angle range show in the illustration.

9. INSTALL HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

(a) Using SST, install the heated oxygen sensor.

SST: 09224-00010

  • without SST

Torque: 44 N·m (449 kgf·cm, 33 ft·lbf)

  • with SST

Torque: 40 N·m (408 kgf·cm, 30 ft·lbf)

HINT:

  • Use a torque wrench with a fulcrum length of 300 cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION (2008 Sequoia) .
  • Make sure SST and wrench are connected in a straight line.

10. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1)

(a) Using SST, install the air fuel ratio sensor.

SST: 09224-00010

  • without SST

Torque: 44 N·m (449 kgf·cm, 33 ft·lbf)

  • with SST

Torque: 40 N·m (408 kgf·cm, 30 ft·lbf)

HINT:

  • Use a torque wrench with a fulcrum length of 300 cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION (2008 Sequoia) .
  • Make sure SST and wrench are connected in a straight line.

11. INSTALL FRONT EXHAUST PIPE ASSEMBLY

(a) Install the new gasket to the front exhaust pipe assembly.

(b) Install the front exhaust pipe assembly with the 3 new nuts.

Torque: 54 N·m (554 kgf·cm, 40 ft·lbf)


(c) Connect the heated oxygen sensor connector.

(d) Connect the air fuel ratio sensor connector.

12. INSTALL CENTER EXHAUST PIPE ASSEMBLY

(a) Install the 2 new gaskets to the front exhaust pipe assembly and front No. 3 exhaust pipe sub-assembly.

(b) Connect the center exhaust pipe assembly to the 3 exhaust pipe supports.

(c) Install the center exhaust pipe assembly with the 4 bolts.

Torque: 48 N·m (489 kgf·cm, 35 ft·lbf)

13. INSTALL TAIL EXHAUST PIPE ASSEMBLY

(a) Install the new gasket to the center exhaust pipe assembly.

(b) Connect the tail exhaust pipe assembly to the exhaust pipe support.

(c) Install the tail exhaust pipe assembly with the new clamp.

Torque: 32 N·m (326 kgf·cm, 24 ft·lbf)

HINT:

Install the clamp within the angle range shown in the illustration.

14. INSPECT FOR EXHAUST GAS LEAK