GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 LaCrosse 🢒 Engine 🢒 Engine Mechanical - 3.6L 🢒 Cylinder Head Replacement - Right Side

Removal Procedure
  1. Remove the right bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Right Side .
  2. Remove the coolant inlet pipe bolts and reposition the coolant inlet pipe to provide access.
  3. Remove the catalytic converter. Refer to Catalytic Converter Replacement .

    4. Object Number: 945769 Size: SH
  4. Remove the wiring harness ground from the side of the cylinder head.

    5. Object Number: 945316 Size: SH
  5. Remove the wiring harness conduit upper bolt from the cylinder head and reposition the conduit to provide access.
  6. Remove the battery cable from the cylinder head. Refer to Battery Negative Cable Replacement .

    7. Object Number: 902818 Size: SH
  7. Remove the cylinder head with the exhaust manifold. Refer to Cylinder Head Removal - Left Side .

    8. Object Number: 902817 Size: SH
  8. Remove and discard the cylinder head gasket.
  9. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to Cylinder Head Cleaning and Inspection and Engine Block Cleaning and Inspection .
  10. If necessary, perform the following steps:
    11. • Remove the exhaust manifold from the cylinder head. Refer to Exhaust Manifold Removal - Left Side .
    • Disassemble the cylinder head. Refer to Cylinder Head Disassemble .

Installation Procedure
  1. If necessary, perform the following steps:
    2. • Assemble the cylinder head. Refer to Cylinder Head Assemble .
    • Install the exhaust manifold to the cylinder head. Refer to Exhaust Manifold Installation - Left Side .

    Object Number: 902817 Size: SH
  2. Install a NEW cylinder head gasket.

    3. Object Number: 902818 Size: SH
  3. Carefully install the cylinder head with the exhaust manifold to the engine. Refer to Cylinder Head Installation - Left Side .
  4. Connect the catalytic converter to the exhaust manifold.
  5. Install the battery negative cable to the cylinder head. Refer to Battery Negative Cable Replacement .

    6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 945316 Size: SH
  6. Install the wiring harness conduit to the cylinder head.

    7. Tighten
    Tighten the wiring harness upper bolt to 10 N·m (89 lb in).


    Object Number: 945769 Size: SH
  7. Install the wiring harness ground to the side of the cylinder head.

    8. Tighten
    Tighten the wiring harness ground bolt to 10 N·m (89 lb in).

  8. Install the catalytic converter. Refer to Catalytic Converter Replacement .
  9. Install the coolant inlet pipe.

    10. Tighten

        • Tighten the coolant inlet pipe-to-cylinder head bolt to 50 N·m (37 lb ft).
        • Tighten the coolant inlet pipe-to-thermostat housing bolt to 10 N·m (89 lb in).
  10. Install the right bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Right Side .