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Engine Coolant Temperature (ECT) Sensor Removal/Installation

WARNING: This page is about a different car, the 2005 Mazda RX-8 and 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the following part for easier access.
  2. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  3. Disconnect the ECT sensor connector.
  4. Remove the ECT sensor.
  5. Replace the gasket.
  6. Install in the reverse order of removal.

    ECT sensor tightening torque 

    1. 15.7-23.5 N.m {1.61-2.39 kgf.m, 11.6-17.3 ft.lbf} 
    Fig 1: Identifying Engine Coolant Temperature Sensor
    G03702072Courtesy of MAZDA MOTORS CORP.