GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the oil pan. Refer to Oil Pan Replacement .

  2. Object Number: 65326  Size: SH
  3. Remove the oil pump bolt from the crankshaft main bearing cap.
  4. Remove the oil pump.
  5. • Inspect the oil pump pickup tube and the screen for damage or looseness.
    • If the oil pump tube is damaged or loose, replace the oil pump.

Installation Procedure


    Object Number: 65326  Size: SH
  1. Install the oil pump to the engine.
  2. 1.1. Align the slot in the oil pump shaft with the tang on the distributor shaft.
    1.2. The oil pump should slide easily into place.
    1.3. Do not use a gasket.

    Important: Make sure that the oil pump assembly is installed properly in to the engine before tightening the mounting bolts.

  3. Install the oil pump bolt to the crankshaft main bearing cap.
  4. Tighten
    Tighten the oil pump bolt to 90 N·m (65 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the oil pan. Refer to Oil Pan Replacement .