Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Camshaft Position Sensor: Service and Repair
2009 Chevrolet Impala V6-3.5LSECTION Service and Repair
Camshaft Position Sensor Replacement
Removal Procedure
1. Remove the power steering pump. Refer to Power Steering Pump Replacement (LZ4/LZE/LZ9) (Service and Repair)Power Steering Pump Replacement (LS4) (Service and Repair).
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.
Installation Procedure
1. Replace the O-ring if damaged, lubricate the NEW O-ring with clean engine oil.
2. Install the CMP sensor.
Caution: Refer to Fastener Caution (Fastener Caution).
3. Install the CMP sensor bolt.
Tighten the bolt to 10 Nm (89 lb in).
4. Connect the CMP sensor electrical connector.
5. Install the power steering pump. Refer to Power Steering Pump Replacement (LZ4/LZE/LZ9) (Service and Repair)Power Steering Pump Replacement (LS4) (Service and Repair).
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.