Sierra 1500 2WD V6-4.3L (2008)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
Engine Coolant Temperature Sensor Replacement
Removal Procedure
Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) Cooling System Draining and Filling (Static Fill).
2. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor (2).
3. Remove the ECT sensor from the cylinder head.
Installation Procedure
Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound,
