Removal Procedure

WARNING: This page is about a different variant/trim than selected.

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

Fig 1: ECT Sensor Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Drain the cooling system below the level of the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (L26 and L32) or Draining and Filling Cooling System (LS4) .
Disconnect the ECT sensor electrical connector (1).

Fig 2: Locating ECT Sensor

Courtesy of GENERAL MOTORS CORP.