GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1890116  Size: SH
  1. Remove the starter. Refer to Starter Motor Replacement .
  2. Disconnect the engine wiring harness electrical connector (1) from the crankshaft position (CKP) sensor.

  3. Object Number: 1578475  Size: SH
  4. Remove the CKP sensor bolt.
  5. Remove the CKP sensor.

Installation Procedure


    Object Number: 1578475  Size: SH
  1. Lubricate the CKP sensor O-ring seal with clean engine oil.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the CKP sensor.
  4. Install the CKP sensor bolt.
  5. Tighten
    Tighten the sensor bolt to 10 N·m (89 lb in).


    Object Number: 1890116  Size: SH
  6. Connect the engine wiring harness electrical connector (1) to the CKP sensor.
  7. Install the starter. Refer to Starter Motor Replacement .
  8. Perform the crankshaft position system variation learn procedure. Refer to Crankshaft Position System Variation Learn .