GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: Perform the Crankshaft Position System Variation Learn whenever the crankshaft position sensor is removed or replaced.


    Object Number: 1698087  Size: SH
  1. Remove the starter. Refer to Starter Motor Replacement.
  2. Working through the wheel well opening, disconnect the engine wiring harness electrical connector (1) from the crankshaft position (CKP) sensor.

  3. Object Number: 1239292  Size: SH
  4. Clean the area around the CKP sensor before removal in order to avoid debris from entering the engine.
  5. Remove the CKP sensor bolt.
  6. Remove the CKP sensor.

Installation Procedure


    Object Number: 1239292  Size: SH
  1. Install the CKP sensor.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the CKP sensor bolt.
  4. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1698087  Size: SH
  5. Connect the engine wiring harness electrical connector (1) to the CKP sensor.
  6. Install the starter. Refer to Starter Motor Replacement.
  7. Perform the CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn.