K 2500 Yukon 4WD V8-6.0L VIN U (2000)
1. Coat the ECT sensor threads with sealer GM P/N 12346004 or the equivalent.
NOTE: Refer to fastener Notice in Cautions and Notices.
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 fitting Cooling System in Engine Cooling.
5. Start the engine and check for leaks.
6. Reinspect the engine coolant level. Refer to Draining and Filling Cooling System in Engine Cooling.
