Last Modified: 11-29-2007 1.6 A
Service Category: Engine/Hybrid System Section: Intake/Exhaust
Model Year: 2008 Model: Sequoia Doc ID: RM000002YRI006X
Title: 2UZ-FE INTAKE / EXHAUST: EXHAUST MANIFOLD: INSTALLATION (2008 Sequoia)

INSTALLATION

1. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY LH


(a) Place a new gasket on the cylinder head with the "L" mark facing the manifold side.

NOTICE:

Be careful of the installation direction.


(b) Temporarily install the exhaust manifold sub-assembly LH, and then uniformly tighten 8 new nuts in several steps, in the sequence shown in the illustration.

Torque: 44 N·m (449 kgf·cm, 32 ft·lbf)

2. INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

(a) Temporarily install the No. 2 exhaust manifold heat insulator with the 4 bolts.


(b) Uniformly tighten the 4 bolts in several steps, in the sequence shown in the illustration.

Torque: 7.5 N·m (76 kgf·cm, 66 in·lbf)

3. INSTALL NO. 2 STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY STEERING GEAR / LINKAGE: STEERING GEAR: INSTALLATION (2008 Sequoia)+

4. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH


(a) Place a new gasket on the cylinder head with the "R" mark facing the manifold side.

NOTICE:

Be careful of the installation direction.


(b) Temporarily install the exhaust manifold sub-assembly RH, and then uniformly tighten 8 new nuts in several steps, in the sequence shown in the illustration.

Torque: 44 N·m (449 kgf·cm, 32 ft·lbf)

5. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

(a) Temporarily install the No. 1 exhaust manifold heat insulator with the 4 bolts.


(b) Uniformly tighten the 4 bolts in several steps, in the sequence shown in the illustration.

Torque: 7.5 N·m (76 kgf·cm, 66 in·lbf)

6. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY 2UZ-FE ENGINE CONTROL: AIR FUEL RATIO SENSOR: INSTALLATION (2008 Sequoia)+

7. INSTALL FRONT PROPELLER SHAFT ASSEMBLY (for 4WD) DRIVE SHAFT / PROPELLER SHAFT: FRONT PROPELLER SHAFT ASSEMBLY: INSTALLATION (2008 Sequoia)+

8. INSTALL PROPELLER SHAFT HEAT INSULATOR (for 4WD) DRIVE SHAFT / PROPELLER SHAFT: FRONT PROPELLER SHAFT ASSEMBLY: INSTALLATION (2008 Sequoia)+

9. INSTALL FRONT EXHAUST PIPE ASSEMBLY 2UZ-FE ENGINE CONTROL: AIR FUEL RATIO SENSOR: INSTALLATION (2008 Sequoia)+

10. INSTALL AIR SWITCHING VALVE ASSEMBLY (for Bank 2) 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

11. INSTALL NO. 2 AIR TUBE (for Bank 2) 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

12. CONNECT NO. 2 AIR INJECTION SYSTEM HOSE 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

13. INSTALL WATER BY-PASS PIPE ASSEMBLY


(a) Connect the 2 water hoses to the transmission oil cooler.

(b) Install the water by-pass pipe assembly with the 3 bolts.

Torque: 18 N·m (184 kgf·cm, 13 ft·lbf)

14. CONNECT NO. 5 WATER BY-PASS HOSE


(a) Connect the No. 5 water by-pass hose with the clip.

15. INSTALL HEATER OUTLET WATER HOSE



16. INSTALL ENGINE OIL LEVEL DIPSTICK GUIDE 2UZ-FE LUBRICATION: OIL PUMP: INSTALLATION (2008 Sequoia)+

17. INSTALL AIR SWITCHING VALVE ASSEMBLY (for Bank 1) 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

18. INSTALL NO. 3 AIR TUBE (for Bank 1) 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

19. INSTALL NO. 2 AIR HOSE (for Bank 1) 2UZ-FE EMISSION CONTROL: AIR SWITCHING VALVE: INSTALLATION (2008 Sequoia)+

20. INSTALL AIR CLEANER ASSEMBLY 2UZ-FE ENGINE CONTROL: ECM: INSTALLATION (2008 Sequoia)+

21. INSTALL AIR CLEANER HOSE ASSEMBLY 2UZ-FE ENGINE CONTROL: THROTTLE BODY: INSTALLATION (2008 Sequoia)+

22. ADD ENGINE COOLANT 2UZ-FE COOLING: COOLANT: REPLACEMENT (2008 Sequoia)+

23. INSPECT FOR COOLANT LEAK 2UZ-FE COOLING: COOLING SYSTEM: ON-VEHICLE INSPECTION (2008 Sequoia)+

24. INSTALL THROTTLE BODY COVER SUB-ASSEMBLY 2UZ-FE ENGINE CONTROL: THROTTLE BODY: INSTALLATION (2008 Sequoia)+

25. INSTALL NO. 1 ENGINE UNDER COVER 2UZ-FE LUBRICATION: OIL AND OIL FILTER: REPLACEMENT (2008 Sequoia)+

26. INSPECT FOR EXHAUST GAS LEAK

27. INSTALL FRONT FENDER APRON SEAL LH

(a) Install the front fender apron seal LH with the 6 clips.

28. INSTALL FRONT FENDER APRON SEAL REAR LH

(a) Install the front fender apron seal rear LH with the 5 clips.

29. INSTALL FRONT FENDER APRON SEAL RH

(a) Install the front fender apron seal RH with the 6 clips.

30. INSTALL FRONT FENDER APRON SEAL REAR RH

(a) Install the front fender apron seal rear RH with the 5 clips.