GM Service Manual Online
For 1990-2009 cars only
Makes šŸ¢’ GMC_Truck šŸ¢’ 2008 šŸ¢’ Acadia - 2WD šŸ¢’ Engine šŸ¢’ Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L šŸ¢’ Cylinder Head Replacement - Left Side

Removal Procedure
  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. Object Number: 945431 Size: SH
  4. Remove the wiring harness ground from the cylinder head.
  5. Remove the catalytic converter. Refer to Catalytic Converter Replacement - Left Side.
  6. 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.

    7. Object Number: 902815 Size: SH
  7. Remove the cylinder head with the exhaust manifold. Refer to Cylinder Head Removal - Left Side.

    8. Object Number: 902814 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. ā€¢ Remove the exhaust manifold from the cylinder head. Refer to Exhaust Manifold Removal - Left Side.
    ā€¢ Remove the camshaft. Refer to Camshaft Removal - Left Side.
    ā€¢ Disassemble the cylinder head. Refer to Cylinder Head Disassemble.
    ā€¢ Remove the coolant sensor. Refer to Engine Coolant Temperature Sensor Replacement.

Installation Procedure
  1. If necessary, perform the following steps:
    2. ā€¢ Install the coolant sensor. Refer to Engine Coolant Temperature Sensor Replacement.
    ā€¢ Assemble the cylinder head. Refer to Cylinder Head Assemble.
    ā€¢ Install the camshaft. Refer to Camshaft Installation - Left Side.
    ā€¢ Install the exhaust manifold to the cylinder head. Refer to Exhaust Manifold Installation - Left Side.

    Object Number: 902814 Size: SH
  2. Install a NEW cylinder head gasket.

    3. Object Number: 902815 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. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 945431 Size: SH
  7. Install the wiring harness ground to the cylinder head.

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

  8. Install the coolant temperature sensor electrical connector.
  9. Install the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.
  10. Install the left bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Left Side.