GM Service Manual Online
For 1990-2009 cars only

    Object Number: 20726  Size: SH
  1. Remove the auxiliary valve body cover (330) and the auxiliary valve body assembly (343) from the control valve and oil pump assembly (21).

  2. Object Number: 20727  Size: SH
  3. Remove the auxiliary valve body cover (330) from the auxiliary valve body (343).

  4. Object Number: 20728  Size: SH
  5. Remove the following parts from the control valve and oil pump assembly (21):
  6. • The pump vane ring (351)
    • The pump rotor (353)
    • Seven pump vanes (352)

    Object Number: 20729  Size: SH
  7. Remove the retaining pin (304) for the pump priming spring.
  8. Remove the pump spring retaining plug (358) and the spring (359).

  9. Object Number: 20730  Size: SH
  10. Remove the following parts from the control valve and oil pump assembly (21):
  11. • The pump slide (348)
    • The fluid seal ring (346)
    • The fluid seal (347)