Coolant Temperature Sending Unit
Warm sending unit in water. Ensure resistance decreases with increase of temperature. SeeFig 1 . Using an ohmmeter, check sending unit resistance as temperature changes. See COOLANT TEMPERATURE SENDING UNIT RESISTANCE . If resistance is not as specified, replace coolant temperature sending unit.
COOLANT TEMPERATURE SENDING UNIT RESISTANCE
| Temp. °F (°C) | Ohms |
|---|---|
| 122 (50) | 189.4-259.6 |
| 239 (115) | 24.2-28.1 |