GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 5.7L 🢒 Cylinder Head Replacement - Left Side

Removal Procedure

    Object Number: 639836 Size: SH
  1. Remove the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  2. Remove the intake manifold. Refer to Intake Manifold Replacement .
  3. Remove the engine coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement in Engine Cooling.
  4. Remove the power steering pump and bracket. Refer to Power Steering Pump Replacement in Power Steering System.
  5. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side in Engine Exhaust.
  6. Remove the engine wiring harness ground bolt from the rear of the left cylinder head.
  7. Reposition the engine wire harness ground strap away from the cylinder head.

    8. Object Number: 260146 Size: SH

    Important: The cylinder head bolts are NOT reusable.

  8. Remove the cylinder head bolts.

    9. Notice: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.

  9. Remove the cylinder head. Refer to Cylinder Head Removal - Left Side .

    10. Object Number: 63169 Size: SH
  10. Remove the cylinder head gasket.
  11. Discard the gasket.
  12. Discard the cylinder head bolts.
  13. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .

Installation Procedure

    Object Number: 260146 Size: SH
  1. Install the cylinder head. Refer to Cylinder Head Installation - Left Side .

    2. Object Number: 639836 Size: SH
  2. Position the engine wire harness ground strap to the cylinder head.

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

  3. Install the engine wiring harness ground bolt to the rear of the left cylinder head.

    4. Tighten
    Tighten the engine wire harness ground bolt to 32 N·m (24 lb ft).

  4. Install the exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side in Engine Exhaust.
  5. Install the power steering pump and bracket. Refer to Power Steering Pump Replacement in Power Steering System.
  6. Install the engine coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement in Engine Cooling.
  7. Install the intake manifold. Refer to Intake Manifold Replacement .
  8. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .