GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Terraza Ext. 🢒 Engine 🢒 Engine Controls - 3.5L (LX9) 🢒 Crankshaft Position Sensor Replacement

Removal Procedure

    Object Number: 15969 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Position the catalytic converter out of the way. Refer to Exhaust Seal Replacement .
  3. Disconnect the block heater electrical connector, if equipped.
  4. Disconnect the crankshaft position (CKP) sensor electrical connector.
  5. Remove the CKP sensor bolt.
  6. Remove the CKP sensor.
  7. Inspect for wear, cracks, or leakage if the sensor is not being replaced.

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

    2. Object Number: 15969 Size: SH
  2. Install the CKP sensor.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the CKP sensor bolt.

    4. Tighten
    Tighten the bolt to 11 N·m (97 lb in).

  4. Connect the CKP sensor electrical connector.
  5. Connect the block heater electrical connector, if equipped.
  6. Connect the catalytic converter. Refer to Exhaust Seal Replacement .
  7. Lower the vehicle.
  8. Perform the CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn .