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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 744 (PGM-FI SYSTEM)ECT SENSOR 2 REPLACEMENT
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
ECT Sensor 2 Replacement
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION ECT Sensor 2 Replacement
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
- Drain the engine coolant (see COOLANT CHECK ).
- Raise the vehicle on a lift.
- Disconnect the ECT sensor 2 connector (A), then remove ECT sensor 2 (B).
- Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see COOLANT CHECK ).
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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.