Engine Coolant Temperature (ECT) Sensor
- Remove ECT sensor. ECT sensor is threaded into top right front of engine. Place ECT sensor and thermometer into container of coolant.
- Connect ohmmeter to coolant temperature sensor terminals. Cool and heat container. Measure resistance at specified temperatures. See ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE table below. Replace ECT sensor if resistance is not within specification.
ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature - °F (°C) | Ohms |
|---|---|
| -4 (-20) | 14,600-17,800 |
| 68 (20) | 2200-2700 |
| 176 (80) | 250-350 |