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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 908 (Engine Controls And Fuel - 6.6L (LMM) - Introduction (2 Of 2)) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. 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.
    Fig 1: View Of ECT Sensors
    GM1870784Courtesy of GENERAL MOTORS CORP.
  1. If installing the old sensor(s), coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent.
    2. NOTE: Refer to Fastener Notice .
  2. Install the appropriate ECT sensor (1).

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

    3. Fig 2: View Of Engine Wiring Harness Electrical Connector
    GM1870783Courtesy of GENERAL MOTORS CORP.
  3. Connect the engine wiring harness electrical connector (1) to the appropriate ECT sensor.
  4. Install the generator. Refer to Generator Replacement (4.3L) or Generator Replacement (4.8L, 5.3L, 6.0L, and 6.2L) or Generator Replacement (6.6L) .
  5. Fill the cooling system, as necessary. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac-N-Fill) .
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