Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine - Coolant Temperature Sensor/Switch: Service and Repair
2003 Hyundai Tiburon V6-2.7LSECTION Service and Repair
COOLANT TEMPERATURE SENSOR
REMOVAL
1. Drain the engine coolant.
2. Remove the engine harness after disconnecting the ground cable of the battery.
3. Remove the engine coolant sensor.
INSTALLATION
1. Apply sealant to the sensor's threads. Tighten it to the specified torque.
Recommended sealant:.....Three bond NO. 1324 or LOCTITE 262
Tightening torque
The coolant sensor:......20 - 40 Nm (200 - 400 kg.cm, 14 - 29 ft. lbs.)
2. Connect the coolant sensor to the harness.
3. Connect the ground cable of battery.
4. Refill radiator with the coolant.
REMOVAL
1. Drain the engine coolant.
2. Remove the engine harness after disconnecting the ground cable of the battery.
3. Remove the engine coolant sensor.
INSTALLATION
1. Apply sealant to the sensor's threads. Tighten it to the specified torque.
Recommended sealant:.....Three bond NO. 1324 or LOCTITE 262
Tightening torque
The coolant sensor:......20 - 40 Nm (200 - 400 kg.cm, 14 - 29 ft. lbs.)
2. Connect the coolant sensor to the harness.
3. Connect the ground cable of battery.
4. Refill radiator with the coolant.
RENDER: 1.0x
NO RELATED
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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.