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Home >> Toyota >> 1998 >> Avalon XLS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - System/Component Tests - V6 & V8 >> Engine Sensors & Switches >> Engine Coolant Temperature (ECT) Sensor >> Avalon, Camry & Sienna

Avalon, Camry & Sienna

  1. Ensure ignition is off. Note location of ECT sensor. See ENGINE COOLANT TEMPERATURE (ECT) SENSOR LOCATION  table. Remove ECT sensor. See appropriate REMOVE/INSTALL/OVERHAUL article.
  2. Place probe end of ECT sensor and thermometer in container of water. Attach ohmmeter between electrical terminals on ECT sensor. Heat water and note that resistance is within specification in relation to temperature. See Figure. Replace ECT sensor if resistance is not within specification.
  3. Using NEW gasket, install ECT sensor. Tighten ECT sensor to 15 ft. lbs. (20 N.m). Fill cooling system.
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