Grand Prix V8-5.3L (2007)
1. Coat the thread of the ECT sensor with sealer GM P/N 12346004 (Canadian P/N 10953480), or equivalent.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the ECT sensor.
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor electrical connector (1).
4. Refill the engine coolant. Refer to Draining and Filling Cooling System (L26, L32 GE 47716 Fill) Draining and Filling Cooling System (L26, L32
Static Fill) Draining and Filling Cooling System (LS4 GE 47716 Fill) Draining and Filling Cooling System (LS4 Static Fill) in Engine Cooling.