Important: Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Important: Tap out the sensor mounting hole in the engine head to remove any thread sealant residue. Clean any sealant residue from the old sensor and apply the RTV sealant to threads if old the sensor is going to be reused.
Notice: Refer to Fastener Notice in the Preface section.
Tighten
Tighten the ECT sensor to 20 N·m (15 lb ft).