Exhaust Manifold Replacement - Right Side L36

Caution: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

Caution: Always wear protective goggles and gloves when removing exhaust parts as falling rust and sharp edges from worn exhaust components could result in serious personal injury.

1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
2. Disconnect the heated oxygen sensor at the sensor pigtail.
3. Remove the right side spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.8L.



4. Remove the two nuts securing the power brake booster heat shield to the exhaust crossover.
5. Remove the power brake booster heat shield from the exhaust crossover.
6. Remove the two bolts attaching the exhaust crossover to the right exhaust manifold.
7. Remove the transaxle filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.
8. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
9. Remove the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .
10. Remove the heated oxygen sensor if replacement is necessary. Refer to Heated Oxygen Sensor 1 Replacement in Engine Controls - 3.8L.



11. Remove the fuel injector sight shield bracket retaining nuts.
12. Remove the fuel injector sight shield bracket.



13. Remove the right engine lift bracket retaining fasteners.
14. Remove the right engine lift bracket.



15. Remove the bolt (1) securing the EGR inlet pipe to the right exhaust manifold.
16. Remove the right exhaust manifold retaining fasteners.
17. Remove the right exhaust manifold and the gasket from the engine. Do not reuse the gasket.
18. Remove the exhaust crossover seal from the exhaust crossover. Do not reuse the seal.
19. Clean and inspect the right exhaust manifold. Refer to Exhaust Manifold Cleaning and Inspection in Engine Mechanical - 3.8L.

1. Place a NEW exhaust crossover seal over the exhaust crossover.



2. Place a NEW exhaust manifold gasket over the cylinder head studs.
3. Position the right exhaust manifold around the exhaust crossover and up to the right cylinder head.

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.

4. Install the right exhaust manifold fasteners.

Tighten
Tighten the exhaust manifold fasteners to 30 N·m (22 lb ft).

5. Install the bolt (1) securing the EGR inlet pipe to the right exhaust manifold.

Tighten
Tighten the EGR inlet pipe bolt to 30 N·m (22 lb ft).




6. Position the right engine lift bracket to the engine.
7. Install the right engine lift bracket retaining fasteners.

Tighten
Tighten the engine lift bracket retaining fasteners to 30 N·m (22 lb ft).




8. Position the fuel injector sight shield bracket to the engine.
9. Install the fuel injector sight shield bracket retaining nuts.

Tighten
Tighten the fuel injector sight shield bracket retaining nuts to 30 N·m (22 lb ft).

10. Install the heated oxygen sensor. Refer to Heated Oxygen Sensor 1 Replacement in Engine Controls - 3.8L.
11. Install the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .
12. Lower the vehicle.
13. Install the transaxle filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement in Automatic Transaxle - 4T65-E.



14. Install the bolts securing the exhaust crossover to the right exhaust manifold.

Tighten
Tighten the exhaust crossover bolts to 20 N·m (15 lb ft).

15. Install the power brake booster heat shield to the exhaust crossover.
16. Install the two nuts securing the power brake booster heat shield to the exhaust crossover.

Tighten
Tighten the power brake booster heat shield nuts to 20 N·m (15 lb ft).

17. Install the right side spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.8L.
18. Connect the heated oxygen sensor at the sensor pigtail.
19. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.