GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 3.9L 🢒 Camshaft Installation

    Object Number: 1682175 Size: SH
  1. Coat the camshaft journals with clean engine oil.
  2. Coat the camshaft lobes with prelube GM P/N 12345501 (Canadian P/N 992704) or the equivalent.
  3. Install the camshaft using the following procedure:
    4. 3.1. Install a camshaft sprocket bolt into the camshaft. Tighten finger tight only.
    3.2. Carefully rotate the camshaft while installing the camshaft into the camshaft bearings.

    Object Number: 54981 Size: SH
  4. Install the camshaft thrust plate.

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

  5. Install the camshaft thrust plate screws and tighten to 10 N·m (89 lb in).

    6. Object Number: 909619 Size: SH
  6. Install the camshaft position sensor.
  7. Install the camshaft position sensor bolt and tighten to 10 N·m (89 lb in).