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Home >> Mazda >> 2011 >> 3 i SV, 2.0 G >> Repair and Diagnosis >> External Pages >> Different car >> Section 573 (Engine Control System [L3 With TC]) >> Engine Coolant Temperature (ECT) Sensor Removal/Installation >> ECT Sensor No. 1

ECT Sensor No. 1

WARNING: This page is about a different car, the 2010 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] .)
  2. Disconnect the negative battery cable.
  3. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS .)
  4. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] .)
  5. Remove the air cleaner. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  6. Remove the air duct. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  7. Disconnect the ECT sensor No. 1 connector.
  8. Remove the ECT sensor No. 1.
  9. Install in the reverse order of removal.
  10. Refill the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS .)
    Fig 1: ECT Sensor No. 1 And Water Bypass Tube With Torque Specifications
    G06730923Courtesy of MAZDA MOTORS CORP.
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