GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 31739  Size: SH
  1. Remove the engine oil pan. Refer to Oil Pan Replacement .
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  3. Remove the water pump. Refer to Water Pump Replacement in Engine Cooling.

  4. Object Number: 188000  Size: SH
  5. Disconnect the crankshaft position (CKP) sensor electrical connector.
  6. Remove the CKP sensor. Refer to Crankshaft Position Sensor Replacement in Engine Controls.
  7. Remove the engine front cover. Refer to Engine Front Cover Removal .

Installation Procedure


    Object Number: 188000  Size: SH
  1. Install the engine front cover. Refer to Engine Front Cover Installation .
  2. Install the CKP sensor with a NEW seal (O-ring). Refer to Crankshaft Position Sensor Replacement in Engine Controls.

  3. Object Number: 31739  Size: SH
  4. Install the engine oil pan. Refer to Oil Pan Replacement .
  5. Connect the crankshaft position (CKP) sensor electrical connector.
  6. Install the water pump. Refer to Water Pump Replacement in Engine Cooling.
  7. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .