Temperature Sending Unit
Allow engine to cool. Disconnect temperature sending unit harness connector. Using a DVOM, measure resistance between terminal of sending unit and ground. Start engine. Measure sensor resistance as engine warms. If resistance values are not as specified, replace coolant temperature sending unit. See TEMPERATURE SENDER RESISTANCE table.
TEMPERATURE SENDER RESISTANCE
| Temperature - °F (°C) | Resistance (Ohms) |
|---|---|
| 167 (75) | 179-219 |
| 212 (100) | 60-72 |