GM Service Manual Online
For 1990-2009 cars only

Valve Rocker Arm Cover Removal - Right Side L98, LS2


    Object Number: 1954184  Size: SH
  1. Remove the spark plug leads (1).

  2. Object Number: 1954182  Size: SH
  3. Remove the ignition coil bracket retaining studs (2).
  4. Remove the ignition coil and bracket assembly (1).

  5. Object Number: 1954183  Size: SH
  6. Remove the valve rocker arm cover retaining bolts (2) and valve rocker arm cover (1).

  7. Object Number: 1954187  Size: SH

    Important: The valve rocker arm cover gasket is a single use only component and must be replaced whenever the valve rocker arm cover is removed from the cylinder head.

  8. Remove the valve rocker arm cover gasket (1).
  9. Discard the valve rocker arm cover gasket (1).

Valve Rocker Arm Cover Removal - Right Side LS3


    Object Number: 1408867  Size: SH

    Important: Do not remove the oil fill tube from the cover unless service is required. If the oil fill tube has been removed from the cover, install a NEW tube during assembly.

  1. Remove the spark plug wires (724).
  2. Remove the ignition coil bracket studs (720).
  3. Remove the ignition coil and bracket assembly (719).

  4. Object Number: 1402020  Size: SH
  5. Disconnect the ignition coil electrical connectors.
  6. Remove the bolts (723), coils (722), and wire harness (721) from the bracket, as required.

  7. Object Number: 1559859  Size: SH
  8. Remove the valve rocker arm cover bolts (516) and cover (505).

  9. Object Number: 1272820  Size: SH
  10. Remove the gasket (504) from the cover.

  11. Object Number: 1559860  Size: SH
  12. Remove the oil fill cap (424) from the oil fill tube (423).
  13. Remove the oil fill tube, as required.
  14. Discard the oil fill tube (423) and O-ring (422).