Engine Coolant Temperature Sensor
- Disconnect Engine Coolant Temperature (ECT) sensor connector. Using an ohmmeter, measure resistance between ECT sensor terminals.
- If resistance is not as specified, replace sensor. See ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE table.
ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 32 (0) | 7300 |
| 68 (20) | 2800 |
| 176 (80) | 300 |
| 212 (100) | 150 |