Engine Coolant Temperature Sensor - Installation

5.7L HEV ENGINE

WARNING: On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury Service Precautions





1. Apply thread sealant to ECT sensor threads.
2. Install the ECT sensor (3) to the engine.
3. Tighten the ECT sensor to 11 Nm (97.3 in. lbs.).
4. Connect the electrical connector (2).
5. Fill the cooling system Service and Repair.
6. Connect the negative battery cable.
7. Perform HEV specific high voltage power up and high voltage isolation check safety procedures. Battery System - High Voltage Power Up