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Home >> Chevrolet >> 2009 >> Chevy Express G1500, Van Cargo, 4.3 X >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.3L - Introduction >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: Engine Coolant Temperature Sensor
    GM1934571Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac N Fill) .
  3. Disconnect the engine wiring harness electrical connector (1) from the engine coolant temperature (ECT) sensor (2).
    4. Fig 2: View Of ECT Sensor
    GM1876211Courtesy of GENERAL MOTORS CORP.
    CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  4. Remove the ECT sensor from the cylinder head.
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