GM Service Manual Online
For 1990-2009 cars only

    Object Number: 236063  Size: SH
  1. Lubricate the gears with clean engine oil.
  2. • The oil pump inner gear
    • The oil pump outer gear
    • The inside surface of the oil pump body

    Object Number: 236063  Size: SH
  3. Install the oil pump outer and inner gears to the oil pump body.
  4. Notice: Fill oil pump cavities with petroleum jelly prior to installation. This will ensure that there is oil pressure immediately on start-up and will prevent engine damage.

    Important: Place the drive gear and the driven gear into the oil pump body with the marks on the gears facing the oil pump cover side.

  5. Fill the oil pump with petroleum jelly to prime the oil pump.

  6. Object Number: 236052  Size: SH
  7. Assemble the pressure relief valve.
  8. Install the oil pump cover to the oil pump body. Secure the cover with five screws.