Last Modified: 11-29-2007 1.6 A
Service Category: Engine/Hybrid System Section: Intake/Exhaust
Model Year: 2008 Model: Sequoia Doc ID: RM0000031GV005X
Title: 3UR-FE INTAKE / EXHAUST: EXHAUST MANIFOLD: INSTALLATION (2008 Sequoia)

INSTALLATION

1. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH


(a) Install a new gasket to the cylinder head and a new gasket to the No. 2 air tube.

HINT:

  • Install the exhaust manifold gasket with the gasket tab facing toward the front of the engine.
  • Install the air tube gasket with the gasket's claws facing the tube side.


(b) Temporarily install the exhaust manifold with the 2 nuts labeled A and 8 new nuts.

(c) Uniformly tighten the nuts that are not labeled A, and then tighten the 2 nuts labeled A.

  • for nut A

Torque: 10 N·m (102 kgf·cm, 7 ft·lbf)

  • except nut A

Torque: 21 N·m (214 kgf·cm, 16 ft·lbf)

2. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR


(a) Install the No. 1 exhaust manifold heat insulator with the 3 bolts.

Torque: 10 N·m (102 kgf·cm, 7 ft·lbf)

3. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY LH


(a) Install a new gasket to the cylinder head and a new gasket to the No. 3 air tube.

HINT:

  • Install the exhaust manifold gasket with the gasket tab facing toward the rear of the engine.
  • Install the air tube gasket with the gasket's claws facing the tube side.


(b) Temporarily install the exhaust manifold with the 2 nuts labeled A and 8 new nuts.

(c) Uniformly tighten the nuts that are not labeled A, and then tighten the 2 nuts labeled A.

  • for nut A

Torque: 10 N·m (102 kgf·cm, 7 ft·lbf)

  • except nut A

Torque: 21 N·m (214 kgf·cm, 16 ft·lbf)

4. INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR


(a) Install the No. 2 exhaust manifold heat insulator with the 3 bolts.

Torque: 10 N·m (102 kgf·cm, 7 ft·lbf)

5. INSTALL NO. 2 STEERING INTERMEDIATE SHAFT SUB-ASSEMBLY


(a) Align the matchmarks and insert the No. 2 steering intermediate shaft sub-assembly into the intermediate shaft.


(b) Align the matchmarks and insert the No. 2 steering intermediate shaft sub-assembly into the power steering gear.

(c) Install the 2 bolts.

Torque: 35 N·m (357 kgf·cm, 26 ft·lbf)

6. INSTALL FRONT NO. 4 FLOOR HEAT INSULATOR



(a) Install the front No. 4 floor heat insulator with 4 bolts.

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

7. INSTALL FRONT NO. 3 FLOOR HEAT INSULATOR



(a) Install the front No. 3 floor heat insulator with 4 bolts.

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

8. INSTALL FRONT EXHAUST PIPE ASSEMBLY



(a) Install a new gasket and the front exhaust pipe assembly to the exhaust manifold RH with 3 new nuts.

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

(b) Install a new gasket and the front exhaust pipe assembly to the center exhaust pipe assembly with the 2 bolts.

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

(c) Connect the air fuel ratio sensor connector.

(d) Connect the heated oxygen sensor connector and 2 clamps.

9. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY



(a) Install a new gasket and the front No. 2 exhaust pipe sub-assembly to the exhaust manifold LH with 3 new nuts.

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


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

(c) Install 2 new gaskets and the front No. 3 exhaust pipe sub-assembly with the 4 bolts and 2 new nuts.

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

(d) Connect the air fuel ratio sensor connector.

(e) Connect the heated oxygen sensor connector.

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

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

12. INSTALL ENGINE OIL LEVEL DIPSTICK GUIDE 3UR-FE STARTING: STARTER: INSTALLATION (2008 Sequoia)+

13. INSPECT FOR EXHAUST GAS LEAK

If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.

14. INSTALL FRONT FENDER APRON SEAL REAR LH

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

15. INSTALL FRONT FENDER APRON SEAL LH

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

16. INSTALL FRONT FENDER APRON SEAL REAR RH

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

17. INSTALL FRONT FENDER APRON SEAL RH

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

18. INSTALL NO. 1 ENGINE UNDER COVER 3UR-FE LUBRICATION: OIL AND OIL FILTER: REPLACEMENT (2008 Sequoia)+