GM Service Manual Online
For 1990-2009 cars only

    Object Number: 3785  Size: SH
  1. Remove the oil pump drive bolt.
  2. Remove the oil pump drive. Do this by lifting and turning the oil pump drive.

  3. Object Number: 3786  Size: SH
  4. Remove the bolt that attaches the oil pump to the rear main bearing cap.
  5. Remove the oil pump.

  6. Object Number: 3788  Size: SH
  7. Remove the oil pump drive shaft.
  8. Important: Do not crack the oil pump drive shaft retainer.

  9. Remove the oil pump drive shaft retainer.

  10. Object Number: 3789  Size: SH

    Important: A loose oil pump tube can cause an air leak and a loss of oil pressure.

  11. Inspect the oil pump pickup tube for looseness.