Exhaust Manifold Replacement (Passenger Side)

REMOVAL PROCEDURE
1. Remove the transmission.
2. Remove the coolant intake pipe.





3. Remove the three exhaust manifold lower heat shield bolts.
4. Remove the exhaust manifold lower heat shield.
5. Remove the exhaust manifold rear lower three nuts.
6. Remove the rear, upper heat shield bolt.





7. Remove the catalytic converter nuts from the exhaust manifold.
8. Lower the vehicle.
9. Remove the serpentine drive belt tensioner.
10. Remove the exhaust manifold front two nuts.





11. Remove the exhaust manifold upper heat shield bolts. The upper heat shield stays in place. The bolts are removed to enable access to the AIR injection pipe.





12. Remove the AIR injection pipe bolts (1).
13. Remove the AIR injection pipe (2) from the exhaust manifold.
14. Remove the exhaust manifold upper two nuts.
15. Raise and support the vehicle.
16. Remove the exhaust manifold.
17. Clean the cylinder head mating surfaces.
18. Clean the exhaust manifold mating surfaces if being reused.

INSTALLATION PROCEDURE
1. Install the exhaust manifold and hold in place with manifold nuts.
2. Lower the vehicle.
3. Install the exhaust manifold upper two nuts.
- Tighten the exhaust manifold upper two nuts to 20 Nm (15 ft lbs).

Notice: Refer to Fastener Notice in Service Precautions.





4. Install the AIR injection pipe (2) to the exhaust manifold.
5. Coat the AIR injection pipe bolts (1) 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. Coat the exhaust manifold upper heat shield bolts with high temperature anti-seize compound, GM P/N 5613695 or equivalent.





8. Install the exhaust manifold upper heat shield bolts.
- Tighten the exhaust manifold upper heat shield bolts to 8 Nm (71 inch lbs).

9. Install the exhaust manifold front lower two nuts.
- Tighten the exhaust manifold front lower two nuts to 20 Nm (15 ft lbs).

10. Install the serpentine drive belt tensioner.
11. Raise and support the vehicle.





12. Install the catalytic converter nuts to the exhaust manifold.
- Evenly tighten the catalytic converter nuts to 20 Nm (15 ft lbs).

13. Install the exhaust manifold rear lower three nuts.
- Tighten the exhaust manifold rear lower three nuts to 20 Nm (15 ft lbs).

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

17. Lower the vehicle.
18. Install the coolant intake pipe.
19. Install the transmission.