Engine Coolant Temperature (ECT) Sensor
Remove sensor from intake manifold and place in water with a thermometer. Heat water to specified temperature and check resistance. See ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE table. Replace sensor if resistance is not within specification.
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Temperature: °F (°C) | Ohms |
|---|---|
| 14 (-14) | 7000-11,400 |
| 68 (20) | 2100-2900 |
| 122 (50) | 680-1000 |
| 176 (80) | 290-350 |