GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Express 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Valve Rocker Arm Cover Replacement - Right Side

Removal Procedure

    Object Number: 757688 Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
  2. Remove the upper transmission fill tube. Refer to Transmission Fluid Filler Tube and Seal Replacement for the 4L60-E/4L65-E transmission.
  3. Remove the oil fill tube. Refer to Oil Level Indicator and Tube Replacement .
  4. Disconnect the main electrical connector (1) to the ignition coil wire harness.
  5. Remove the harness clips (2).
  6. Reposition the engine harness, if necessary.
  7. Remove the spark plug wires from the ignition coils.
    8. • Twist each plug wire 1/2 turn.
    • Pull only on the boot in order to remove the wire from the ignition coil.

    Object Number: 824414 Size: SH
  8. Remove the ignition coil bracket studs from the rocker arm cover.
  9. Remove the ignition coils and bracket from the rocker cover.

    10. Object Number: 647795 Size: SH
  10. Remove the vent hose from the valve rocker arm cover.

    11. Object Number: 260084 Size: SH
  11. Remove the valve rocker arm cover bolts.
  12. Remove the valve rocker arm cover.

    13. Object Number: 490696 Size: SH
  13. Remove the gasket (1) from the rocker cover.
  14. Discard the OLD gasket.

Installation Procedure

Important: 

   • All gasket surfaces should be free of oil or other foreign material during assembly.
   • DO NOT reuse the valve rocker arm cover gasket.
   • The valve rocker arm cover bolt grommets may be reused.


    Object Number: 490696 Size: SH
  1. Install a NEW rocker cover gasket (1) into the valve rocker arm cover.

    2. Object Number: 824415 Size: SH
  2. Install the valve rocker arm cover onto the cylinder head.

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

  3. Install new rocker arm cover grommets, if necessary.
  4. Install the rocker arm cover bolts and grommets.

    5. Tighten
    Tighten the valve rocker arm cover bolts to 12 N·m (106 lb in).


    Object Number: 647795 Size: SH
  5. Install the vent hose to the valve rocker arm cover.

    6. Object Number: 824414 Size: SH
  6. Apply threadlock to the threads of the bracket bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  7. Install the ignition coils and bracket to the rocker arm cover.
  8. Install the ignition coil bracket studs to the rocker cover.

    9. Tighten
    Tighten the ignition coil bracket studs to 12 N·m (106 lb in).


    Object Number: 757688 Size: SH
  9. Install the spark plug wires to the ignition coils.
  10. Position the engine harness, if necessary.
  11. Install the harness clips (2).
  12. Connect the main electrical connector (1) feeding the ignition coils.
  13. Install the CPA lock.
  14. Install the oil fill tube. Refer to Oil Level Indicator and Tube Replacement .
  15. Install the upper transmission fill tube. Refer to Transmission Fluid Filler Tube and Seal Replacement for the 4L60-E/4L65-E transmission.
  16. Install the engine cover. Refer to Engine Cover Replacement in Interior Trim.