GM Service Manual Online
For 1990-2009 cars only

Cylinder Head Replacement Left

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  3. Remove the lower intake manifold. Refer to Intake Manifold Replacement .
  4. Remove the valve rocker arms and valve pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  5. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement .

  6. Object Number: 11482  Size: SH
  7. Remove the sixteen cylinder head bolts.
  8. Remove the cylinder head and the gasket. Refer to Cylinder Head Removal (Right) .
  9. Clean all sealing surfaces. Refer to Cylinder Head Clean and Inspect .

Installation Procedure

Tools Required
J 36660-A Torque Angle Meter


    Object Number: 11482  Size: SH
  1. Install the cylinder head. Refer to Cylinder Head Installation (Right) .
  2. Install the exhaust manifold. Refer to Exhaust Manifold Replacement .
  3. Install the valve rocker arms and the valve pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  4. Install the lower intake manifold. Refer to Intake Manifold Replacement .
  5. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  6. Connect the battery negative cable. Refer to Battery Cable Replacement in Engine Electrical.

Cylinder Head Replacement Right

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  3. Remove the lower intake manifold. Refer to Intake Manifold Replacement .
  4. Remove the valve rocker arms and valve pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  5. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement .

  6. Object Number: 205505  Size: SH
  7. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  8. Remove the generator and drive belt tensioner bracket using the following procedure:
  9. 7.1. Remove the nut.
    7.2. Remove the three bolts.
    7.3. Slide the generator and drive belt tensioner bracket off of the stud.
    7.4. Remove the stud.

    Object Number: 11482  Size: SH
  10. Remove the sixteen cylinder head bolts.
  11. Remove the cylinder head and the gasket. Refer to Cylinder Head Removal (Right) .
  12. Clean all sealing surfaces. Refer to Cylinder Head Clean and Inspect .

Installation Procedure

Tools Required
J 36660-A Torque Angle Meter


    Object Number: 11482  Size: SH
  1. Install the cylinder head. Refer to Cylinder Head Installation (Right) .

  2. Object Number: 205505  Size: SH
  3. Install the generator and drive belt tensioner bracket using the following procedure:
  4. • Install the stud.

    Tighten
    Tighten the stud to 22 N·m (16 lb ft).

    • Loosely assemble the generator and drive belt tensioner bracket over the stud.
    • Install a nut to the stud finger tight.
    • Install the three bolts finger tight.

    Tighten
    Tighten the nuts and bolts to 44 N·m (32 lb ft).

    • Install the generator. Refer to Generator Replacement in Engine Electrical.
  5. Install the exhaust manifold. Refer to Exhaust Manifold Replacement .
  6. Install the valve rocker arms and the valve pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  7. Install the lower intake manifold. Refer to Intake Manifold Replacement .
  8. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  9. Connect the battery negative cable. Refer to Battery Cable Replacement in Engine Electrical.