GM Service Manual Online
For 1990-2009 cars only

    Object Number: 354070  Size: SH

    Important: Parts that are to be reused must remain sorted or organized in order to return them to their original location.

  1. Clean the components with cleaning solvent.
  2. Caution: Wear safety glasses in order to avoid eye damage.

  3. Dry the components with compressed air.
  4. Inspect the valve rocker arms for wear or scoring in the ball area.
  5. Inspect the valve rocker arm pushrod sockets and valve stem tip mating surfaces.
  6. Inspect the valve rocker arm ball for wear or scoring.
  7. These surfaces should be smooth with no scoring or exceptional wear.


    Object Number: 202196  Size: SH
  8. Inspect the pushrods for worn or scored ends. These surfaces should be smooth with no scoring or exceptional wear.
  9. Inspect the pushrods for bends. Roll the pushrod on a flat surface to determine if the pushrod is bent.
  10. Caution: Wear safety glasses in order to avoid eye damage.

  11. Inspect the pushrod oil passages for restrictions.
  12. • Clean out the pushrod tube with compressed air.
    • Visually look through the pushrod tube for obstructions, a clear pushrod will allow light through.
    • Replace pushrod(s) that cannot be cleaned out.