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Home >> Chevrolet >> 2005 >> Cutaway 6.0 U >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Control System - 4.3L - Introduction) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2005 GMC Savana and 2005 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Coat the threads with sealer GM P/N 9985253 or equivalent.
    2. Fig 1: View Of ECT Sensor
    GM246800Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.
  2. Install the ECT sensor.

    Tighten:  Tighten the ECT sensor to 20 N.m (15 lb ft).

    3. Fig 2: Locating Engine Coolant Temperature (ECT) Sensor Electrical Connector
    GM246797Courtesy of GENERAL MOTORS CORP.
  3. Connect the ECT sensor harness connector to the ECT sensor.
  4. Refill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
  5. Install the engine cover. Refer to Engine Cover Replacement in Interior Trim.
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