Exhaust Manifold Replacement (Driver Side)

REMOVAL PROCEDURE
1. Remove the engine assembly.





2. Remove the exhaust manifold lower heat shield bolts.
3. Remove the exhaust manifold lower heat shield.
4. Remove the exhaust manifold upper heat shield bolts.
5. Remove the exhaust manifold upper heat shield.





6. Remove the AIR injection pipe bolts (1).
7. Pull the AIR injection pipe (2) away from the exhaust manifold to enable access to the fastening nuts from the manifold.
8. Remove the AIR injection pipe from the exhaust manifold.





9. Remove the coolant pipe (3) and the engine lift bracket bolt (2) from the cylinder head.
10. Grasp the oil level indicator tube (4) firmly.
11. Pull the oil level indicator tube upwards for removal.
12. Remove the exhaust manifold fastening nuts.
13. Clean the cylinder head mating surfaces,
14. Clean the exhaust manifold mating surfaces.

INSTALLATION PROCEDURE
1. Install the exhaust manifold nuts.

Notice: Refer to Fastener Notice in Service Precautions.

- Tighten the exhaust manifold nuts to 20 Nm (15 ft lbs).





2. Install the oil level indicator tube (4).
3. Install the coolant pipe (3) and the engine lift bracket bolt (2) to the cylinder head. Ensure the bolt passes through all of the attached components.
- Tighten the coolant pipe/engine lift bracket bolt to 20 Nm (15 ft lbs).

4. Install the AIR injection pipe to the exhaust manifold.
5. Coat the AIR injection pipe bolts with high temperature anti-seize compound, GM P/N 5613695 or equivalent.





6. Install the AIR injection pipe bolts (1).
- Tighten the AIR injection pipe bolts to 20 Nm (15 ft lbs).

7. Install the exhaust manifold upper heat shield.
8. Coat the exhaust manifold upper heat shield bolts with high temperature anti-seize compound, GM P/N 5613695 or equivalent.
9. Install the exhaust manifold upper heat shield bolts.
- Tighten the exhaust manifold upper heat shield bolts to 8 Nm (71 inch lbs).

10. Install the engine assembly.