GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Cylinder Head Replacement - Right Side

Special Tools

J 45059 Angle Meter

Removal Procedure

    Object Number: 475837 Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling.
  3. Remove the oil filler tube.
  4. Remove the generator bracket. Refer to Generator Bracket Replacement.
  5. Remove the intake manifold. Refer to Lower Intake Manifold Replacement.
  6. Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side.
  7. Remove the right pushrods. Refer to Valve Rocker Arm and Push Rod Replacement.
  8. Remove the generator bracket stud from the cylinder head.

    9. Object Number: 328590 Size: SH
  9. Remove the spark plug wire support bolts and support.

    10. Object Number: 480537 Size: SH
  10. Remove and discard the cylinder head bolts.

    11. Object Number: 480538 Size: SH
  11. Remove the cylinder head.

    12. Object Number: 334312 Size: SH
  12. Remove and discard the cylinder head gasket.

    13. Object Number: 330553 Size: SH
  13. Remove the cylinder head locator pins, if necessary.
  14. Clean and inspect the cylinder head, if necessary. Refer to Cylinder Head Cleaning and Inspection.
  15. Disassemble the cylinder head, if necessary. Refer to Cylinder Head Disassemble.

Installation Procedure

    Object Number: 334314 Size: SH
  1. Assemble the cylinder head, if necessary. Refer to Cylinder Head Assemble.
  2. Install the cylinder head locator pins, if necessary.

    3. Object Number: 334312 Size: SH

    Note: Do not use any type of sealer on the cylinder head gasket.

  3. Install a NEW cylinder head gasket.

    4. Object Number: 480538 Size: SH
  4. Install the cylinder head.

    5. Object Number: 480537 Size: SH
  5. Apply sealant to the threads of the NEW cylinder head bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  6. Install the cylinder head bolts finger tight.

    7. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 5132 Size: SH
  7. Tighten the cylinder head bolts using the sequence shown.
    8. • Tighten the bolts a first pass to 30 N·m (22 lb ft).
    • Tighten the long bolts (1, 4, 5, 8, 9) a final pass to 75 degrees using J 45059
    • Tighten the medium bolts (12, 13) a final pass to 65 degrees using J 45059
    • Tighten the short bolts (2, 3, 6, 7, 10, 11) a final pass to 55 degrees using J 45059

    Object Number: 328590 Size: SH
  8. Install the spark plug wire support and bolts and tighten to 12 N·m (106 lb in).

    9. Object Number: 475837 Size: SH
  9. Install the generator bracket stud and tighten to 20 N·m (15 lb ft).
  10. Install the right pushrods. Refer to Valve Rocker Arm and Push Rod Replacement.
  11. Install the exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side.
  12. Install the intake manifold. Refer to Lower Intake Manifold Replacement.
  13. Install the generator bracket. Refer to Generator Bracket Replacement.
  14. Install the oil filler tube.
  15. Fill the cooling system. Refer to Cooling System Draining and Filling.
  16. Install the engine cover. Refer to Engine Cover Replacement.