GM Service Manual Online
For 1990-2009 cars only

    Object Number: 858186  Size: SH

    Important: Once removed, place the valve rocker arms and valve lash adjusters in an organized order so the components can be installed into the original locations.

  1. Remove the valve rocker arms.

  2. Object Number: 858187  Size: SH
  3. Remove the valve lash adjusters.