Removal
Drain the engine coolant. (2-18)
Disconnect the ECT sensor lead wire coupler.
Place a rag under the ECT sensor and remove the ECT sensor (1).
![](https://motoinstruction.ru/img/suzuki/14/120469.jpg)
Inspection
Check the ECT sensor by testing it at the bench as shown in the figure. Connect the ECT sensor (1) to a circuit tester and place it in the WATER contained in a pan, which is placed on a stove.
Heat the water to raise its temperature slowly and read the column thermometer (2) and the ohmmeter.
![](https://motoinstruction.ru/img/suzuki/14/120470.jpg)
If the ECT sensor ohmic valve does not change in the proportion indicated, replace it with a new one.
Temperature sensor specification
Temperature | Standard resistance |
20°C (68°F) | Approx. 2.45 kΩ |
40°C (104°F) | Approx. 1.148 kΩ |
60°C (140°F) | Approx. 0.587 kΩ |
80°C (176°F) | Approx. 0.322 kΩ |
If the resistance noted to show infinity or too much different resistance value, replace the ECT sensor with a new one.
Caution!
- Take special care when handling the ECT sensor. It may cause damage if it gets a sharp impact.
- Do not contact the ECT sensor (1) and the column thermometer (2) with a pan.
Installation
Install a new sealing washer (1).
![](https://motoinstruction.ru/img/suzuki/14/120471.jpg)
Tighten the ECT sensor to the specified torque.
- ECT sensor: 19 N·m (1.9 kgf·m, 13.5 lb·ft)
Caution! Take special care when handling the ECT sensor. It may cause damage if it gets a sharp impact.
Pour engine coolant. (2-18)
Bleed air from the cooling circuit. (2-19)