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Home >> GMC >> 2002 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure
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Removal Procedure

CAUTION: Refer to BATTERY DISCONNECT CAUTION .
  1. Remove the negative battery cables.
  2. Drain the cooling system below the level of the sensor.
  3. Remove the electrical connector by releasing the locking tab.
    Fig 1: ECT Electrical Connector
    G01599435Courtesy of GENERAL MOTORS CORP.
  4. Remove the sensor.
    Fig 2: ECT Sensor
    G01599436Courtesy of GENERAL MOTORS CORP.
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