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 DIAGNOSISENGINE, COOLING AND EXHAUSTENGINEENGINE LUBRICATIONOIL LEVEL SENSORSERVICE AND REPAIR
2009 Chevrolet Impala V8-5.3L
Oil Level Sensor: Service and Repair
2009 Chevrolet Impala V8-5.3LSECTION Service and Repair
Engine Oil Level Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Drain the oil from the oil pan.
3. Disconnect the oil level sensor electrical connector.
4. Remove the oil level sensor bolt (751).
5. Remove the oil level sensor (727) and O-ring (728) from the oil pan.
Installation Procedure
1. Install the oil level sensor (727) and O-ring (728) to the oil pan.
Caution: Refer to Fastener Caution (Fastener Caution).
2. Install the oil level sensor bolt (751).
Tighten the bolt to 20 Nm (15 lb ft).
3. Connect the oil level sensor electrical connector.
4. Lower the vehicle.
5. Refill the engine oil to the proper level.
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.