GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2002 🢒 LeSabre 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Camshaft Position Sensor Replacement

Removal Procedure
  1. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.

    3. Object Number: 389047 Size: SH
  3. Disconnect the electrical connector (2) from the camshaft position sensor (1).

    4. Object Number: 12305 Size: SH
  4. Remove the camshaft position (CMP) sensor retaining screw.
  5. Remove the CMP sensor from the engine front cover.

Installation Procedure
  1. Install the CMP sensor to the engine front cover.

    2. Object Number: 389047 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.

  2. Install the camshaft position sensor retaining bolt.

    3. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  3. Connect the electrical connector (2) to the camshaft position sensor (1).
  4. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  5. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.