GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Impala 🢒 Engine 🢒 Engine Electrical 🢒 Valve Rocker Arm Cover Replacement - Right Side

Removal Procedure

    Object Number: 261279 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the drive belt. Refer to Drive Belt Replacement .
  3. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  4. Remove the generator bracket. Refer to Generator Bracket Replacement in Engine Electrical.
  5. Remove the right spark plug wires. Refer to Spark Plug Wire Replacement in Engine Controls - 3.4L.
  6. Disconnect the vacuum hoses from the EVAP purge valve.
  7. Remove the EVAP purge valve.
  8. Remove the ignition coil bracket with the coils. Refer to Ignition Coil Replacement in Engine Controls - 3.4L.
  9. Remove the Ignition coil bracket studs.
  10. Remove the vacuum hose from the grommet in the right valve rocker arm cover.

    11. Object Number: 61834 Size: SH

    Important: the valve rocker arm cover gasket and sealant must be carefully trimmed away from the lower intake manifold gasket. Failure to do so may change the lower intake manifold gasket, causing a severe oil leak.

  11. Remove the right valve rocker arm cover bolts.

    12. Important: When removing the valve rocker arm cover, ensure that the gasket stays in place attached to the cylinder head.

  12. Remove the right valve rocker arm cover. If the valve rocker arm cover adheres to the cylinder head, bump the end of the valve rocker arm cover with the palm of your hand or a soft rubber mallet.
  13. Clean the valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection .

Installation Procedure

    Object Number: 190589 Size: SH
  1. Install a new right valve rocker arm cover gasket to the valve rocker arm cover.

    2. Important: Apply sealant GM P/N 12378577, (Canadian P/N 89022195) or equivalent at the cylinder head to lower intake manifold joint.

  2. Apply sealant at the cylinder head to lower intake manifold joint at the rear of the lower intake manifold  (1).

    3. Object Number: 190588 Size: SH

    Important: Apply sealant GM P/N 12378577, (Canadian P/N 89022195) or equivalent at the cylinder head to lower intake manifold joint.

  3. Apply sealant at the cylinder head to lower intake manifold joint at the rear of the lower intake manifold  (1).

    4. Object Number: 61834 Size: SH
  4. Install the right valve rocker arm cover.

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

  5. Install the valve rocker arm cover bolts.

    6. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  6. Install the vacuum hose to the grommet in the right valve rocker arm cover.
  7. Install the Ignition coil bracket studs.
  8. Install the ignition coil bracket with coils. Refer to Ignition Coil Replacement in Engine Controls - 3.4L.
  9. Install the EVAP purge valve.

    10. Object Number: 261279 Size: SH
  10. Connect the vacuum hoses to the EVAP purge valve.
  11. Install the right spark plug wires. Refer to Spark Plug Wire Replacement in Engine Controls - 3.4L.
  12. Install the generator bracket. Refer to Generator Bracket Replacement in Engine Electrical.
  13. Install the generator. Refer to Generator Replacement in Engine Electrical.
  14. Install the drive belt. Refer to Drive Belt Replacement .
  15. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.