GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1150725  Size: SH

    Caution: In order to prevent damage to the crankshaft position (CKP) sensor reluctor wheel/ring, care must be used when removing or installing this component.

    Note: The CKP sensor is designed to contact the crankshaft reluctor wheel. Wear may be noticeable on the end of the sensor.

  1. Remove the CKP sensor bolt.
  2. Apply penetrating oil to the CKP sensor-to-engine block mating surface. Allow the penetrating oil to soak for several minutes, to help loosen the O-ring from the engine block.
  3. Twist the sensor to loosen the O-ring seal. When removing the sensor, pull the sensor straight out of the engine block at the same angle the sensor was installed.
  4. Inspect both CKP sensor O-rings for cuts, cracks, tears, or damage. Replace the O-rings, as needed.

  5. Object Number: 471055  Size: SH

    Note: Crankshaft bearing caps are machined with the engine block for the proper clearances. Mark or identify each crankshaft bearing cap location and direction before removal. Crankshaft bearing caps must be installed in their original locations.

  6. Remove the crankshaft bearing cap bolts and studs.

  7. Object Number: 471044  Size: SH
  8. Remove the crankshaft bearing caps.
  9. Remove the crankshaft bearings from the crankshaft bearing caps.

  10. Object Number: 471047  Size: SH

    Caution: In order to prevent damage to the crankshaft position (CKP) sensor reluctor wheel/ring, care must be used when removing or installing this component.

  11. Remove the crankshaft.

  12. Object Number: 471041  Size: SH
  13. Remove the crankshaft bearings from the engine block.