GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 8062 Valve Spring Compressor
    • J 37979 Valve Spring Compressor Adapter

    Important: Keep the valve train components together, and identify the components in order to correctly install the components in the original position.

    Caution: Wear safety glasses in order to avoid eye damage.


    Object Number: 373669  Size: SH
  1. Compress the valve spring. Use the J 8062 .

  2. Object Number: 373663  Size: SH
  3. Remove the valve keepers (1).
  4. Slowly release the J 8062 from the valve spring assembly.
  5. Remove the retainer.
  6. Remove the spring.

  7. Object Number: 373657  Size: SH

    Notice: Do not damage the valve guide. Remove any burrs that have formed at the key groove by chamfering the valve stem with an oil stone or a file.

  8. Remove the valve seal (1).
  9. Remove the spring seats.
  10. Remove the valve.
  11. Remove the remaining valves.