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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 322 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - Repair Instructions) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

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CAUTION:

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

    Fig 1: Engine Wiring Harness, Clip, Bolt And Connectors
    GM1696914Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system to a level below the engine cooling temperature (ECT) sensor. Refer to Cooling System Draining and Filling (Static Fill) .
  2. Disconnect the engine wiring harness electrical connector (2) from the ECT sensor.
    3. Fig 2: Engine Coolant (ECT) Sensor
    GM855737Courtesy of GENERAL MOTORS CORP.
  3. Remove the ECT sensor.
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