FixVault

Removal Procedure

CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    Fig 1: View Of Engine Wiring Harness Electrical Connectors
    GM1889684Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (GE 47716) .
  2. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor (2).
  3. Fig 2: Identifying ECT Sensor & Thermostat Housing
    GM1889685Courtesy of GENERAL MOTORS CORP.
  4. Remove the ECT sensor (1) from the thermostat housing.