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Home › GMC › 2001 › C3500 HD 6.5 F, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - 6.5L (L65) (Introduction) › Repair Instructions › Engine Coolant Temperature (ECT) Sensor Replacement › Installation Procedure

Installation Procedure

    Fig 1: Installing ECT Sensor
    GM263631Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the sensor into the engine.

    Tighten:  Tighten the sensor to 25 N.m (18 lb ft).

    2. Fig 2: ECT Electrical Connector
    GM26963Courtesy of GENERAL MOTORS CORP.
  2. Install the electrical connector.
  3. Refill the coolant system.
  4. Install the negative battery cables.
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