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) | 190-260 |
| 176 (80) | 55-65 |
| 212 (100) | 25-35 |