Blazer 4WD V6-4.3L VIN X (2005)
1. Coat the threads (only) with GM P/N 12346004 sealer or equivalent.
2. Install the ECT sensor in the engine.
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor harness connector.
4. Refill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
5. Install the air cleaner outlet duct assembly and tighten the wing nuts.
6. Connect the negative battery cable.
