GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1777192  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the engine wiring harness electrical connector (2) from the crankshaft position (CKP) sensor.

  3. Object Number: 1587763  Size: SH
  4. Remove the CKP sensor stud.
  5. Remove the CKP sensor.

Installation Procedure


    Object Number: 1587763  Size: SH
  1. Lubricate the CKP sensor O-ring with clean engine oil.
  2. Remove the CKP sensor.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Remove the CKP sensor stud.
  5. Tighten
    Tighten the stud to 10 N·m (89 lb in).


    Object Number: 1777192  Size: SH
  6. Connect the engine wiring harness electrical connector (2) to the CKP sensor.
  7. Lower the vehicle.
  8. Perform the CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn.