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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1311 (Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Introduction (1 Of 2)) >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Do not insert any tools into the throttle body bore in order to avoid damage to the throttle valve plate.
CAUTION: 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 Sensor
    GM855737Courtesy of GENERAL MOTORS CORP.
  1. If installing the old sensor, coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent.
  2. CAUTION: Refer to Fastener Caution .
  3. Install the ECT sensor and tighten to 20 N.m (15 lb ft).
  4. Fig 2: View Of Engine Wiring Harness, Clip, Bolt & Connector
    GM1696914Courtesy of GENERAL MOTORS CORP.
  5. Connect the engine wiring harness electrical connector (2) to the ECT sensor.
  6. Refill the cooling. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .