Removal Procedure
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the right bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Right .
- Remove the coolant inlet pipe bolts and reposition the coolant inlet pipe to provide access.
- Remove the catalytic converter.
- Remove the wiring harness ground from the side of the cylinder head.
- Remove the wiring harness conduit upper bolt from the cylinder head and reposition the conduit to provide access.
- Remove the battery cable from the cylinder head. Refer to Battery Negative Cable Replacement (LY7) in Engine Electrical.
- Remove the cylinder head with the exhaust manifold.
- Remove and discard the cylinder head gasket.
- Clean and inspect the cylinder head and the engine block sealing surfaces.
- If necessary, perform the following steps:
- Remove the exhaust manifold from the cylinder head.
- Disassemble the cylinder head.