Coolant Temperature Sensor (Fox)
The Coolant Temperature Sensor is mounted on bottom of coolant outlet on cylinder head. Resistance measured across sensor terminals should match values represented in COOLANT TEMPERATURE SENSOR RESISTANCE table. If necessary, test circuit using charts in the J - PIN VOLTAGE CHARTS article. If resistance measured across sensor terminals does not match values COOLANT TEMPERATURE SENSOR RESISTANCE table, sensor is faulty and should be replaced. Always use new sealing washer. Replacing sensor will require draining and replacing some of engine coolant.
COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 68 (20) | 3000-2000 |
| 86 (30) | 2000-1500 |
| 104 (40) | 1500-1000 |
| 122 (50) | 1000-800 |
| 140 (60) | 700-500 |
| 158 (70) | 500-375 |
| 176 (80) | 375-275 |
| 194 (90) | 275-225 |