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 (LY7 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LNJ GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LNJ Static Fill) (Service and Repair)Cooling System Draining and Filling (LY7 Static Fill) (Service and Repair).
2. Disconnect the engine wiring harness electrical connector (4) from the engine coolant temperature (ECT) sensor.




3. Remove the ECT sensor.

Installation Procedure





Caution: Refer to Component Fastener Tightening Caution (Component Fastener Tightening Caution).

1. Install the ECT sensor.

Tighten the sensor to 22 Nm (16 lb ft).




2. Connect the engine wiring harness electrical connector (4) to the ECT sensor.
3. Fill the cooling system. Refer to Cooling System Draining and Filling (LY7 GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LNJ GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LNJ Static Fill) (Service and Repair)Cooling System Draining and Filling (LY7 Static Fill) (Service and Repair).