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.
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
2009 Chevrolet Malibu V6-3.6LSECTION Service and Repair
Engine Coolant Temperature Sensor Replacement
Removal Procedure
1. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor.
2. Remove the ECT sensor.
Installation Procedure
Caution: Refer to Fastener Caution (Fastener Caution).
1. Install the ECT sensor and tighten to 22 Nm (16 lb ft).
2. Connect the engine wiring harness electrical connector (1) to the ECT sensor.
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.