Installation Procedure

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

If installing the old sensor, coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent.

Fig 1: Locating Coolant Temperature Sensor
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Fig 2: View Of Engine Coolant Temperature Sensor And Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the ECT sensor electrical connector.
Fill the cooling system, if necessary. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) in Engine Cooling.