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Home >> Chevrolet >> 2005 >> Avalanche 2500 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 8.1L - Introduction >> Repair Instructions >> Crankshaft Position (CKP) Sensor Replacement >> Removal Procedure
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Removal Procedure

NOTE: In order to prevent damage to the crankshaft position (CKP) sensor reluctor wheel/ring care must be used when removing or installing this component.
    Fig 1: View Of Fuel Pipe Bracket & Nut At Bellhousing
    GM1238747Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the fuel line bracket nut.
  3. Remove the fuel line bracket from the bellhousing stud.
  4. Lower the vehicle.
  5. Fig 2: View Of Engine Harness Grounds And CKP Sensor And Oil Pressure Sensor Electrical Connectors
    GM1235690Courtesy of GENERAL MOTORS CORP.
  6. Remove the driver side rear ignition coil bolts.
  7. Reposition the ignition coil.
  8. Disconnect the crankshaft position (CKP) sensor electrical connector (4).
  9. Use penetrating oil and allow the oil to soak around the CKP sensor prior to removing the sensor.
  10. Fig 3: View Of CKP Sensor & Bolt
    GM1150725Courtesy of GENERAL MOTORS CORP.
  11. Remove the CKP sensor bolt.
  12. Twist the CKP sensor back and forth.
  13. Pull the sensor straight up in order to remove the CKP sensor.
  14. Fig 4: Identifying Normal CKP Sensor Wear
    GM814961Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The CKP sensor is designed to contact the reluctor wheel of the crankshaft. Wear may be noticeable on the end of the sensor.
  15. Inspect the CKP sensor for wear.
  16. Normal CKP sensor wear will be shown on the wear strips (1) and no wear will be shown on the sensor sensing element (2).
  17. Fig 5: Identifying Excessive Or Abnormal CKP Sensor Wear
    GM814962Courtesy of GENERAL MOTORS CORP.
  18. Excessive or abnormal sensor wear will be shown on the sensing element (2).
  19. If excessive/abnormal wear is present, replace the sensor.