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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Engine Coolant Temperature Sensor Replacement >> Installation Procedure
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Installation Procedure

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 COMPANY
  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 COMPANY
  5. Connect the engine wiring harness electrical connector (2) to the ECT sensor.
  6. Refill the cooling. Refer to Cooling System Draining and Filling (Static Fill) .