Left Side

Exhaust Manifold Replacement (Left)

Removal Procedure

Tools Required

- J 28467-A Engine Support Fixture

1. Remove the radiator cradle beauty panel.
2. Remove the air cleaner assembly. Refer to Air Filter Element and Air Cleaner Assembly Service and Repair.
3. Remove the left and right engine torque struts. Position the struts out of the way.
4. Remove the engine cooling fans. Refer to Cooling Fan Replacement in Engine Cooling.
5. Install the J 28467-A.
6. Raise the vehicle on the hoist.
7. Remove the two nuts securing the motor mount to the engine cradle.
8. Remove the two bolts securing the motor mount bracket to the crankcase.
9. Remove the two bolts securing the motor mount bracket to the cylinder head.
10. Remove the two nuts securing the motor mount to the mount bracket.






11. Remove the four nuts securing the Exhaust Manifold Rear Pipe to the converter. Reposition the converter out of the way with a support or a strap.
12. Lower the vehicle.
13. Raise the engine by adjusting the engine support fixture.
14. Remove the motor mount and the bracket.
15. Raise the vehicle.
16. Remove the four bolts securing the rear generator bracket.
17. Remove the two bolts at the manifold outlet flange.
18. Disconnect the oxygen sensor wire.






19. Remove the exhaust manifold bolts.
20. Remove the manifold and the gasket. Discard the gasket.
21. Remove the oxygen sensor if replacement is necessary. Refer to Heated Oxygen Sensor (HO2S) Replacement (Front) Service and Repair.

Installation Procedure






1. Install the exhaust manifold by inserting the outlet pipe partially into the exhaust crossover pipe.
2. Move the manifold into position.
3. Install the gasket to the manifold. Hold the gasket in position by inserting two bolts.
4. Start the remainder of the manifold bolts.

Tighten
Tighten the bolts to 25 Nm (18 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.






5. Coat the oxygen sensor threads with high-temperature anti-seize, P/N 5613695 or equivalent.
6. Install the sensor.

Tighten
Tighten the nut to 40 Nm (30 lb ft).

7. Connect the exhaust oxygen sensor.
8. Install the rear generator bracket.

Tighten
Tighten the crankcase bolts to 60 Nm (44 lb ft).

- Tighten the generator bolts to 30 Nm (22 lb ft).

9. Position the motor mount and the bracket.
10. Loosely install two nuts securing the mount to the bracket.
11. Lower the vehicle.
12. Loosely install two bolts to the mount bracket at the cylinder head.
13. Lower the engine to the installed position guiding the motor mount studs in the cradle holes.
14. Raise the vehicle.
15. Loosely install two nuts to the bottom of the motor mount.
16. Loosely install two bolts securing the mount bracket to the crankcase.

Tighten
Tighten the fasteners in steps 12, 17 and 18 to 30 Nm (22 lb ft).

17. Install the rear generator bracket.

Tighten
Tighten the four screws to 50 Nm (37 lb ft).

18. Install four nuts at the converter to the exhaust manifold rear pipe.

Tighten
Tighten the bolts to 25 Nm (18 lb ft).

19. Lower the vehicle.
20. Remove the J 28467-A.

Tighten
Tighten the fasteners installed in step 14 to 30 Nm (22 lb ft).

21. Install the engine cooling fans. Refer to Cooling Fan Replacement in Engine Cooling.
22. Install the air cleaner assembly. Refer to Air Filter Element and Air Cleaner Assembly Service and Repair.
23. Install the left and right engine torque struts. Refer to Engine Mount Strut Replacement Service and Repair.
24. Install the radiator cradle beauty cover.