GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Century (China) (CNG) 🢒 Engine 🢒 Engine Controls - 3.0L (L46) 🢒 Camshaft Position Sensor Replacement

Removal Procedure

    Object Number: 16120 Size: SH
  1. Turn OFF the ignition.
  2. Remove the serpentine drive belt. Refer to Drive Belt Replacement in engine mechanical.
  3. Disconnect the sensor electrical connector.
  4. Remove the attaching bolt.
  5. Remove the sensor.
  6. Inspect the sensor for wear, cracks or leakage if the sensor is not being replaced.

Installation Procedure
  1. Lubricate the O-ring with clean engine oil and replace if damaged.

    2. Object Number: 16120 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.

    3. Tighten
    Tighten the retaining bolt to 10 N·m (8 lb ft).

  3. Connect the sensor electrical connector.
  4. Reinstall the serpentine drive belt. Refer to Drive Belt Replacement in engine mechanical.