GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1227028  Size: SH
  1. Remove the left rocker cover (2). Refer to Valve Rocker Arm Cover Replacement - Left Side .

  2. Object Number: 1226491  Size: SH
  3. Remove the left rocker arm and shaft assembly. Refer to Valve Rocker Arm and Shaft Replacement .
  4. Remove the timing belt. Refer to Timing Belt Replacement .
  5. Remove the coolant bridge.
  6. Disconnect the left bank oxygen sensors.
  7. Remove the left cylinder head. Refer to Cylinder Head Removal - Left Side .

Installation Procedure

  1. Install the left cylinder head. Refer to Cylinder Head Installation - Left Side .
  2. Connect the left bank oxygen sensors.
  3. Install the coolant bridge.
  4. Install the timing belt. Refer to Timing Belt Replacement .

  5. Object Number: 1226491  Size: SH
  6. Install the left rocker arm and shaft assembly. Refer to Valve Rocker Arm and Shaft Replacement .
  7. Adjust the valve lash. Refer to Valve Rocker Arm and Valve Lash Adjuster Replacement .

  8. Object Number: 1227028  Size: SH
  9. Install the left rocker cover (2). Refer to Valve Rocker Arm Cover Replacement - Left Side .