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.
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HOMESERVICE MANUALSCHEVROLET2009IMPALA V8-5.3LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMCAMSHAFT POSITION SENSORSERVICE AND REPAIR
2009 Chevrolet Impala V8-5.3L
Camshaft Position Sensor: Service and Repair
2009 Chevrolet Impala V8-5.3LSECTION Service and Repair
Camshaft Position Sensor Replacement
Removal Procedure
1. Disconnect the camshaft position (CMP) sensor electrical connector.
2. Remove the CMP sensor bolt (705).
3. Remove the CMP sensor (703).
4. Inspect the CMP sensor O-ring seal (704) for cuts or damage. If the seal is not cut or damaged, it may be reused.
5. Remove the CMP sensor O-ring seal (704), if necessary.
Installation Procedure
1. Lubricate the O-ring seal with clean engine oil.
2. Install the O-ring seal (704) onto the CMP sensor, if necessary.
3. Install the CMP sensor (703).
Caution: Refer to Fastener Caution (Fastener Caution).
4. Remove the CMP sensor bolt (705).
Tighten the bolt to 12 Nm (106 lb in).
5. Connect the CMP sensor electrical connector.
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.