Engine Temperature Sensor: Service and Repair

1998 Suzuki Esteem GLX Sedan Plus L4-1.6LSECTION Service and Repair




ENGINE COOLANT TEMPERATURE SENSOR (ECT SENSOR)

Removal
1) Disconnect battery negative cable at battery.
2) Drain coolant.

WARNING: To help avoid danger of being burned, do not remove radiator cap while engine and radiator are still hot. Scalding fluid and steam can be blown out under pressure if cap is taken off too soon.





3) Disconnect coupler from ECT sensor.
4) Remove ECT sensor from thermostat case.



Installation
Reverse removal procedure noting the following:
- Clean mating surfaces of ECT sensor and thermostat case.
- Check O-ring for damage and replace if necessary.
- Tighten ECT sensor to specified torque.

Tightening Torque
(a): 15 Nm (1.5 kg-m, 11.0 lb-ft)


- Connect coupler to ECT sensor securely.
- Refill coolant.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.