GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Oil Pump Installation

    Object Number: 660533 Size: SH
  1. Install a new O-ring to the engine block.
  2. Lubricate the O-ring with engine oil.
  3. Install the oil pump.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the oil pump bolts and tighten to 21 N·m (15 lb ft).

    5. Object Number: 660339 Size: SH

    Note: Do not damage the crankshaft sensor reluctor teeth.

  5. Install the oil pump drive gear and crank sensor reluctor assembly.

    6. Object Number: 660532 Size: SH
  6. Install the oil pump driven gear.

    7. Object Number: 776631 Size: SH

    Caution: Do not use an impact driver to remove or install the oil pump driven gear nut. Use of an impact driver may shear the oil pump drive gear pin in the crankshaft.

    Note: Look for an "L" on the end of the oil pump shaft. If there is an "L" present, the nut and shaft have left hand threads. Service the nut accordingly.

  7. While holding the secondary oil pump shaft with a hex driver, install the oil pump driven gear nut. Tighten the oil pump driven gear nut to 100 N·m (74 lb ft).