Engine Coolant Temperature Sensor: Removal
WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Drain coolant below level of Engine Coolant Temperature (ECT) sensor into a suitable container. Remove engine cover. Disconnect ECT sensor harness connector. ECT sensor is located at left rear of engine. See Fig 1 . Carefully remove ECT sensor.