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Home >> Chevrolet >> 2007 >> Impala LS, 3.5 K >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.5L - Introduction (2 Of 2) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

NOTE: 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 ECT
    GM1586322Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (9C1, 9C3 Static Fill) or Draining and Filling Cooling System (LS4 GE 47716 Fill) or Draining and Filling Cooling System (LS4 Static Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ8, 9C1, 9C3, GE47716 Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ8 Static Fill) .
  2. Remove the intake manifold cover, if necessary. Refer to Intake Manifold Cover Replacement .
  3. Remove the exhaust crossover. Refer to Exhaust Crossover Pipe Replacement (RPO LS4) or Exhaust Crossover Pipe Replacement (RPOs LZE/LZ4/LZ8) .
  4. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
  5. Remove the ECT sensor.
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