GM Service Manual Online
For 1990-2009 cars only

    Object Number: 864163  Size: SH
  1. Remove the pump wear plate. If cracks or excessive scoring is evident, replace component.
  2. Remove the spring retainer, spring, and lube relief valve. If the spring is broken or lube relief valve is scored, replace components.

  3. Object Number: 864125  Size: SH
  4. Remove the pump driven gear.
  5. Remove the pump drive gear.