2004 Chevrolet Avalanche 2500FACTORY OEM SERVICE PROCEDURE

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.
  5. Remove the driver side rear ignition coil bolts.
  6. Reposition the ignition coil.
  7. Disconnect the crankshaft position (CKP) sensor electrical connector (4).
  8. Use penetrating oil and allow the oil to soak around the CKP sensor prior to removing the sensor.
    9. Fig 3: View Of CKP Sensor & Bolt
    GM1150725Courtesy of GENERAL MOTORS CORP.
  9. Remove the CKP sensor bolt.
  10. Twist the CKP sensor back and forth.
  11. Pull the sensor straight up in order to remove the CKP sensor.
    12. Fig 4: Normal Wear Of Sensor Sensing Element
    GM814961Courtesy of GENERAL MOTORS CORP.
Chapter Navigation
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.