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 the 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 |
|---|---|
| 0 (-18) | 14,650 |
| 20 (-7) | 8100 |
| 40 (4) | 4780 |
| 70 (21) | 2350 |
| 100 (38) | 1250 |
| 160 (71) | 400 |
| 210 (99) | 190 |