Camshaft Position Sensor: Service and Repair

2013 GMC Yukon 4WD V8-6.0L HybridSECTION Service and Repair



Camshaft Position Sensor Replacement

Removal Procedure

Note:
Clean the area around the camshaft position (CMP) sensor before removal in order to prevent debris from entering the engine.





1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.

2. Remove the engine shield. Refer to Engine Shield Replacement .

3. Disconnect the engine wiring harness electrical connector (3) from the CMP sensor wire harness.





4. Disconnect the CMP sensor wire harness electrical connector (1) from the CMP actuator magnet.





5. Working through the crankshaft balancer opening, loosen the CMP sensor wire harness bolt (1) 2 turns using a box wrench.





6. Remove the 2 remaining CMP sensor wire harness bolts (1).





7. Lower the vehicle.

8. Using a small flat bladed tool, disengage the CMP sensor wire harness electrical connector retainer (1) from the CMP sensor.





9. Remove the CMP sensor wire harness (1).





10. Remove the CMP sensor (1) and O-ring seal (2).

Installation Procedure





1. Inspect the CMP O-ring seal (2) for cuts or damage. If the seal is not damaged, it may be reused.

2. Lubricate the O-ring seal with clean engine oil.

3. Install the O-ring seal onto the sensor.

4. Instal the CMP sensor (1) to the front cover.





5. Install the CMP sensor wire harness (1).





6. Connect the CMP sensor wire harness electrical connector, ensure that the retainer (1) fully engages the CMP sensor.

7. Raise and suitably support the vehicle.





Caution:
Refer to Fastener Caution Fastener Caution.

8. Install the 2 rear CMP sensor wire harness bolts (1).

Tighten the bolt to 12 Nm (106 lb in).





9. Working through the crankshaft balancer opening, tighten the CMP sensor wire harness bolt (1) using a box wrench.





10. Connect the CMP sensor wire harness electrical connector (1) to the CMP actuator magnet.





11. Connect the engine wiring harness electrical connector (3) to the CMP sensor wire harness.

12. Install the engine shield. Refer to Engine Shield Replacement .

RENDER: 1.0x

NO RELATED

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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.