Engine Coolant Temperature Sensor: Removal
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 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. See ENGINE COVER under MISCELLANEOUS. Disconnect ECT sensor harness connector. ECT sensor is located at left rear of cylinder head. See Fig 1 . Carefully remove ECT sensor.