CTS V6-3.2L VIN N (2003)
5. Remove the following right exhaust manifold retaining nuts:
-
The 3 upper
-
The front lower
6. Remove the starter.
7. Remove the heated oxygen sensor if replacement is necessary.
8. Remove the remaining right exhaust manifold retaining nuts.
9. Remove the right exhaust manifold and the gasket from the engine. Do not reuse the gasket.
10. Clean and inspect the right exhaust manifold.
Installation Procedure
1. Place a NEW exhaust manifold gasket over the cylinder head studs.
2. Position the right exhaust manifold to the right cylinder head.
Notice:
Refer to Fastener Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Fastener Notice
3. Install the right exhaust manifold 3 lower nuts.
Tighten the exhaust manifold nuts to 20 Nm (15 ft. lbs.).
4. Install the heated oxygen sensor if previously removed.
5. Install the starter.
6. Install the remaining right exhaust manifold nuts.
Tighten the exhaust manifold nuts to 20 Nm (15 ft. lbs.).
