2005 Buick Century CustomFACTORY OEM SERVICE PROCEDURE

Removal Procedure

    Fig 1: View Of CMP Sensor
    GM16120Courtesy of GENERAL MOTORS CORP.
  1. Remove the power steering pump. Refer to Power Steering Pump Replacement (3.1L) in Power Steering Systems.
  2. Disconnect the camshaft position (CMP) sensor electrical connector.
  3. Remove the CMP sensor bolt.
  4. Remove the CMP sensor.
  5. Inspect the sensor O-ring for wear, cracks or leakage if the sensor is not being replaced.
Factory Service Tools

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When to See a Mechanic

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

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

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