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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Heating And Cooling System >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement - Engine Coolant Flow Control Valve (L3T)

Engine Coolant Temperature Sensor Replacement - Engine Coolant Flow Control Valve (L3T)

GM5245793Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Drain the cooling system. Cooling System Draining and Filling (GE-47716) , or Cooling System Draining and Filling (Static) 
  2. Radiator Replacement 
  3. Disconnect the electrical connector.
1 Engine Coolant Temperature Sensor Retainer
2 Engine Coolant Temperature Sensor
Fill the coolant to the proper level. Cooling System Draining and Filling (GE-47716) , or Cooling System Draining and Filling (Static) 
Inspect for coolant leaks.