GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Mechanical - 6.5L 🢒 Oil Pump Assemble

    Object Number: 65023 Size: SH
  1. Install the driven gear.
  2. Install the idler shaft.
  3. Install the drive gear with the shaft. Align the marks made during disassembly.
  4. Install the spacer plate.

    5. Object Number: 70354 Size: SH
  5. Install the oil pump cover.

    6. Object Number: 70355 Size: SH

    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.

  6. Install the oil pump cover screws.

    7. Tighten
    Tighten the bolts to 16 N·m (12 lb ft).


    Object Number: 65020 Size: SH
  7. Install the pressure regulator valve.
  8. Install the spring.
  9. Install the roll pin.

    10. Object Number: 699573 Size: SH
  10. Install the pick-up tube and screen assemble if necessary. Align the tube in the same location as removed from.
  11. Prime the oil pump by filling the cavity with clean engine oil.
  12. Inspect the oil pump.
    13. • Turn the drive shaft by hand and check for smooth rotation.
    • If the oil pump does not rotate smoothly, check for proper assembly.
    • If necessary replace the oil pump assembly.