GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Sonoma Pickup - 2WD 🢒 Engine 🢒 Engine Mechanical - 2.2L 🢒 Oil Pump Assemble

    Object Number: 30401 Size: SH

    Important: Replace the pressure relief valve spring when you reuse the oil pump.

  1. Install the following items:
    2. • The pressure regulator valve
    • The pressure regulator spring
    • The retaining pin

    Object Number: 5278 Size: SH
  2. Fill the gear cavity with petroleum jelly.
  3. Install the drive gear and the driven gear into the pump body. Align the matchmarks on the gears. Install the smooth side of the gear toward the pump cover.

    4. Object Number: 5277 Size: SH
  4. Install the pump cover.

    5. Object Number: 5276 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.

  5. Install the cover bolts.

    6. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 3790 Size: SH
  6. Install the shaft and the retainer.