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.
2004 Hyundai Accent BaseFACTORY OEM SERVICE PROCEDURE
Using Hi-Scan
ENGINE COOLANT TEMPERATURE SENSOR TEST SPECIFICATIONS
| Check item | Data display | Check conditions | Engine state | Test specification |
|---|---|---|---|---|
| Engine coolant temperature sensor | Sensor temperature | Ignition switch: ON or engine running | When 0°C (32°F) | 4.27V +/- 0 3 |
| When 20°C (68°F) | 3.44V +/- 0.3 | |||
| When 40°C (104°F) | 2.72V +/- 0.3 | |||
| When 80°C (176°F) | 1.25V +/- 0.3 |
Factory Service Tools
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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.
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