GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Engine 🢒 Engine Mechanical - 3.9L 🢒 Oil Pump Installation

    Object Number: 187031 Size: SH
  1. Install the crankshaft oil deflector.

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

  2. Install the crankshaft oil deflector nuts and tighten to 25 N·m (18 lb ft).

    3. Object Number: 1557857 Size: SH

    Note: Do not reuse the oil pump driveshaft retainer. During assembly, install a NEW oil pump driveshaft retainer.

  3. Install the oil pump.
  4. Position the oil pump onto the pins.
  5. Install the oil pump bolt attaching the oil pump to the rear crankshaft bearing cap, and tighten to 41 N·m (30 lb ft).