C 1500 Truck 2WD V8-5.3L VIN T (1999)
1. Coat the Engine Coolant Temperature (ECT) sensor threads with sealer P/N 12346004 or the equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the ECT sensor
Tighten
Tighten the ECT sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor electrical connector.
4. Refill the engine coolant. Refer to Draining and Filling Cooling System.
5. Start the engine and check for leaks.
6. Recheck the engine coolant level. Refer to Draining and Filling Cooling System.
