GM Service Manual Online
For 1990-2009 cars only

Notice: The Camshaft Position Sensor graphic illustrates the original factory installation. Do not route the new sensor pigtail as shown. Follow the Installation procedure below. Handle carefully in order to avoid damage to the sensor and pigtail. Route away from electronic components in order to avoid Electromagnetic Interference (EMI).

Removal Procedure


    Object Number: 12754  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the serpentine drive belt.
  3. Remove the power steering pump assembly. Refer to Power Steering Pump Replacement in Power Steering System.
  4. Disconnect the electrical connector from the CMP sensor.
  5. Remove the bolt.
  6. Remove the CMP sensor.

Installation Procedure


    Object Number: 12754  Size: SH
  1. Install the camshaft position sensor.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the retaining bolt to the camshaft position sensor.
  4. Tighten
    Tighten the retaining bolt to 10 N·m (8 lb ft).

  5. Connect the electrical connector.
  6. Install the power steering pump. Refer to Power Steering Pump Replacement in Power Steering System.
  7. Install the serpentine drive belt.
  8. Connect the negative battery cable.