Exhaust Manifold Replacement Engine Left Side

1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.



2. Remove the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
3. Drain the engine coolant from the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
4. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement .
5. Disconnect the inlet radiator hose to the engine. Refer to Radiator Inlet Hose Replacement in Engine Cooling.
6. Remove the automatic transaxle vacuum modulator pipe. Refer to Vacuum Modulator Pipe Replacement in Automatic Transmission/Transaxle.
7. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in HVAC Systems - Manual.
8. Remove the exhaust crossover pipe heat shield. Refer to Exhaust Crossover Replacement .
9. Remove the exhaust crossover pipe bolts to the engine left side exhaust manifold. Refer to Exhaust Crossover Replacement .



10. Remove the engine left side exhaust manifold heat shield bolts.
11. Remove the engine left side exhaust manifold heat shield.



12. Remove the engine left side exhaust manifold nuts.
13. Remove the engine left side exhaust manifold.
14. Remove the engine left side exhaust manifold gasket.
15. Clean the engine left side exhaust manifold to the engine left side cylinder head sealing surfaces. Refer to Exhaust Manifold Clean and Inspect .

1. Install the engine left side exhaust manifold gasket.
2. Install the engine left side exhaust manifold.

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.

3. Install the engine left side exhaust manifold nuts.

Tighten
Tighten the engine left side exhaust manifold nuts to 16 N·m (12 lb ft).




4. Install the engine left side exhaust manifold heat shield.
5. Install the engine left side exhaust manifold heat shield bolts.

Tighten
Tighten the engine left side exhaust manifold heat shield bolts to 10 N·m (89 lb in).

6. Install the exhaust crossover pipe bolts to the engine left side exhaust manifold. Refer to Exhaust Crossover Replacement .
7. Install the exhaust crossover pipe heat shield. Refer to Exhaust Crossover Replacement .
8. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in HVAC Systems - Manual.
9. Install the automatic transaxle vacuum modulator pipe. Refer to Vacuum Modulator Pipe Replacement in Automatic Transmission/Transaxle.
10. Connect the inlet radiator hose to the engine. Refer to Radiator Inlet Hose Replacement in Engine Cooling.
11. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement .
12. Fill the cooling system with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.



13. Install the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
14. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

Exhaust Manifold Replacement Engine Right Side

1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Remove the windshield wiper module cover. Refer to Wiper Module Cover Replacement in Wiper Systems.
3. Remove the engine cover. Refer to Fuel Injector Sight Shield Replacement .



4. Remove the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
5. Remove the accelerator cable bracket from the throttle body. Refer to Accelerator Control Cable Bracket Replacement in Engine Controls 3.4L.
6. Remove the Manifold Air Pressure (MAP) sensor. Refer to Manifold Absolute Pressure Sensor Replacement in Engine Controls - 3.4L.



7. Remove the Exhaust Gas Recirculation (EGR) valve. Refer to Exhaust Gas Recirculation Valve Replacement in Engine Controls - 3.4L.
8. Rotate the engine for service access. Refer to Rotating the Engine for Service Access .
9. Remove the ignition module. Refer to Ignition Control Module Replacement in Engine Controls - 3.4L.
10. Remove the spark plug wires from the engine right bank spark plugs.
11. Disconnect the oxygen sensor electrical connector.
12. Remove the EVAP solenoid bracket.
13. Remove the exhaust crossover pipe nuts/studs from the engine right bank exhaust manifold.
14. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
15. Remove the catalytic converter. Refer to Catalytic Converter Replacement in Engine Exhaust.



16. Remove the engine right bank exhaust manifold upper heat shield bolts.
17. Remove the engine right bank exhaust manifold upper heat shield.



18. Remove the engine right bank exhaust manifold lower heat shield bolts.
19. Remove the engine right bank exhaust manifold lower heat shield.



20. Remove the engine right side exhaust manifold nuts.
21. Lower the vehicle.
22. Remove the engine right bank exhaust manifold.
23. Remove the engine right bank exhaust manifold gasket.
24. Clean the engine right side exhaust manifold sealing surfaces and the cylinder head sealing surfaces. Refer to Exhaust Manifold Clean and Inspect .



25. If you are replacing the engine right side exhaust manifold, remove the Exhaust Gas Recirculation (EGR) valve pipe from the exhaust manifold.



26. If you are replacing the engine right side exhaust manifold, remove the Heated Oxygen Sensor (HO2S). Refer to Heated Oxygen Sensor Replacement in Engine Controls - 3.4L.

1. If removed, install the Heated Oxygen Sensor (HO2S). Refer to Heated Oxygen Sensor Replacement in Engine Controls - 3.4L.



2. If removed, install the Exhaust Gas Recirculation (EGR) valve pipe to the exhaust manifold.



3. Install the engine right side exhaust manifold gasket.
4. Install the engine right side exhaust manifold.
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

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.

6. Install the exhaust manifold nuts.

Tighten
Tighten the exhaust manifold nuts to 16 N·m (12 lb ft).




7. Install the engine right side exhaust manifold lower heat shield.
8. Install the engine right side exhaust manifold lower heat shield bolts.

Tighten
Tighten the engine right side exhaust manifold heat shield bolts to 10 N·m (89 lb in).




9. Install the engine right side exhaust manifold upper heat shield.
10. Install the engine right side exhaust manifold upper heat shield bolts.

Tighten
Tighten the engine right side exhaust manifold heat shield bolts to 10 N·m (89 lb in).

11. Install the catalytic converter. Refer to Catalytic Converter Replacement in Engine Exhaust.
12. Lower the vehicle.
13. Install the exhaust crossover pipe nuts/studs to the engine right side exhaust manifold. Refer to Exhaust Crossover Replacement .
14. Install the exhaust crossover pipe heat shield. Refer to Exhaust Crossover Replacement .
15. Lower the vehicle.
16. Install the EVAP solenoid bracket.
17. Install the spark plug wires to the engine right bank spark plugs.
18. Install the ignition module. Refer to Ignition Control Module Replacement in Engine Controls - 3.4L.
19. Rotate the engine back to the original position. Refer to Rotating the Engine for Service Access .



20. Install the Exhaust Gas Recirculation (EGR) valve to the intake manifold. Refer to Exhaust Gas Recirculation Valve Replacement in Engine Controls - 3.4L.
21. Install the Manifold Air Pressure (MAP) sensor. Refer to Manifold Absolute Pressure Sensor Replacement in Engine Controls - 3.4L.
22. Install the accelerator cable bracket to the throttle body. Refer to Accelerator Control Cable Bracket Replacement in Engine Controls 3.4L.



23. Install the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
24. Install the windshield wiper motor cover. Refer to Wiper Module Cover Replacement in Wiper Systems.
25. Install the engine cover. Refer to Fuel Injector Sight Shield Replacement .
26. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.