Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT
REMOVAL PROCEDURE
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Drain the coolant to a level below the engine coolant temperature (ECT) sensor.
2. Disconnect the ECT sensor electrical connector.
3. Remove the ECT sensor (1).
INSTALLATION PROCEDURE
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.