Engine Coolant Temperature (ECT) Sensor - 3.0L (4V) Removal/Installation

Fig 1: Identifying Engine Coolant Temperature Sensor - 3.0L (4V) Remove/Install Components

Courtesy of MAZDA MOTORS CORP.

1. Drain the cooling system. See COOLING SYSTEM DRAINING, FILLING AND BLEEDING - 3.0L (4V) .
2. Disconnect the engine coolant temperature sensor electrical connector.
3. Remove the ECT sensor.
   • Pull upward on the locking tab.
   • Rotate the sensor counterclockwise and remove.
   Fig 2: Rotating Sensor

   Courtesy of MAZDA MOTORS CORP.
4. To install, reverse the removal procedure.