Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature Sensor Replacement

Removal Procedure




1. Partially drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill With HP5) (Service and Repair)Cooling System Draining and Filling (Static Fill Without HP5) (Service and Repair)Cooling System Draining and Filling (GE 47716 Fill With HP5) (Service and Repair)Cooling System Draining and Filling (GE 47716 Fill Without HP5) (Service and Repair)
2. Reposition the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement (HP7) (Service and Repair)Underhood Electrical Center or Junction Block Replacement (HP5) (Service and Repair)
3. Disconnect the engine wiring harness electrical connector (10) from the engine coolant temperature (ECT) sensor (3).




4. Remove the ECT sensor.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution)

1. Install the ECT sensor and tighten to 22 Nm (16 lb ft).




2. Connect the engine wiring harness electrical connector (10) to the ECT sensor (3).
3. Install the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement (HP7) (Service and Repair)Underhood Electrical Center or Junction Block Replacement (HP5) (Service and Repair)
4. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill With HP5) (Service and Repair)Cooling System Draining and Filling (Static Fill Without HP5) (Service and Repair)Cooling System Draining and Filling (GE 47716 Fill With HP5) (Service and Repair)Cooling System Draining and Filling (GE 47716 Fill Without HP5) (Service and Repair)