GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Enclave - AWD 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Cylinder Head Replacement - Left Side

Removal Procedure

    Object Number: 1979425 Size: SH
  1. Remove the left bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Left Side.
  2. Remove the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.
  3. Disconnect the coolant temperature sensor electrical connector.
  4. Remove the catalytic converter from the exhaust manifold. Refer to Catalytic Converter Replacement - Left Side.
  5. Remove the camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake and Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust.
  6. Remove the cylinder head (1) with the exhaust manifold. Refer to Cylinder Head Removal - Left Side.

    7. Object Number: 902814 Size: SH
  7. Remove and discard the cylinder head gasket.
  8. 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.
  9. If necessary, perform the following steps:
    10. • Remove the exhaust manifold from the cylinder head. Refer to Exhaust Manifold Removal - Left Side.
    • Remove the camshaft. Refer to Camshaft Removal - Left Side.
    • Disassemble the cylinder head. Refer to Cylinder Head Disassemble.
    • Remove the coolant sensor. Refer to Engine Coolant Temperature Sensor Replacement.

Installation Procedure

    Object Number: 902814 Size: SH
  1. If necessary, perform the following steps:
    2. • Install the coolant sensor. Refer to Engine Coolant Temperature Sensor Replacement.
    • Assemble the cylinder head. Refer to Cylinder Head Assemble.
    • Install the camshaft. Refer to Camshaft Installation - Left Side.
    • Install the exhaust manifold to the cylinder head. Refer to Exhaust Manifold Installation - Left Side.
  2. Install a NEW cylinder head gasket.

    3. Object Number: 1979425 Size: SH
  3. Carefully install the cylinder head with the exhaust manifold to the engine. Refer to Cylinder Head Installation - Left Side.
  4. Install the camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake and Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust.
  5. Install the catalytic converter to the exhaust manifold. Refer to Catalytic Converter Replacement - Left Side.
  6. Connect the wiring harness electrical connector located at the side of the cylinder head.
  7. Install the coolant temperature sensor electrical connector.
  8. Install the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.
  9. Install the left bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Left Side.