Engine Coolant Temperature Sensor Replacement

Fig 1: Identifying Engine Coolant Temperature Sensor

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure:  Partially drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Static Fill LGH, LML) .
1	Engine Coolant Temperature Sensor CAUTION: Refer to Fastener Caution . Procedure:  Disconnect the engine coolant temperature sensor harness connector. Tighten:  20 N.m (15 lb ft)