GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the lower intake manifold. Refer to Lower Intake Manifold Replacement.

  2. Object Number: 187033  Size: SH
  3. Remove the oil pump drive clamp bolt.
  4. Remove the oil pump drive clamp.
  5. Remove the oil pump drive.

Installation Procedure


    Object Number: 187033  Size: SH
  1. Apply prelube GM P/N 12345501 (Canadian P/N 992704) or the equivalent to the oil pump drive gear.
  2. Apply engine oil to the oil pump drive gear assembly for ease of assembly.
  3. Install the oil pump drive gear assembly.
  4. Install the oil pump drive gear clamp.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the oil pump drive gear clamp bolt and tighten to 36 N·m (27 lb ft).
  7. Install the lower intake manifold. Refer to Lower Intake Manifold Replacement.