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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 470 (Engine Control System & Fuel System - 4.2L - Introduction) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
    CAUTION: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.
  1. If installing the original sensor or a new sensor without sealant, apply thread sealer P/N 12346004 or equivalent.
  2. Fig 1: Identifying ECT Sensor
    GM1713326Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  3. Install the ECT sensor and tighten to 16 N.m (12 lb ft).
  4. Connect the ECT electrical connector (1).
  5. Connect the negative battery terminal.
  6. Refill the engine coolant. Refer to Cooling System Draining and Filling (LL8) or Cooling System Draining and Filling (LH6, LS2) .