Location of the coolant temperature sensor on hyundai accent 2002

I think the temperature sensor and the coolant fan switch are two different sensors. One tells the temperature and passes it to the ECM which passes that information to the gauge, the other works via a relay to turns the fans on and off. A fan spinning freely is not a test. You need to connect it to 12 volts and watch it run.

https://www.google.com/search?q=2002+toyota+solara+radiator+fan+switch+location

Check out the videos. Also make sure the fan is working.

https://www.google.com/search?q=2013+Hyundai+Accent+Coolant+Temperature+Sensor+Location

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Yes this vehicle has one!

On most vehicles top radiator hose goes to thermostat. God-Bless!

first check coolant level in radiator coolant level sound low.if coolant overflow jug empty.coolant sysyem low, when add coolant to coolant overflow jug coolant level should stay at full cold mark.if coolant level okay,engine overheat while sitting or moving in slow traffic either coolant fan relay or fuse could be bad.or engine coolant temperature sensor could be bad. coolant sensor turn on cooling fan at certain temperature.hot wire check to make sure cooling fan motor not bad or short in wires.if all is good have pcm check it controls fan relay to through the coolant temperature sensor signal when coolant get hot.

I would assume that the sensor is probably doing EXACTLY what it is designed to do....measure engine temperature! An engine will get hot when sitting in traffic if the radiator cooling fans are not working. The engine temperature will then go back down when the vehicle starts moving and air begins to flow through the radiator.
Get your radiator cooling fans checked!

Please also review this article: What Else Could Be Wrong?

car shuts off when temp, gets to normal--- causes: low coolant, failing coolant temp. sensor, air in water pump, failed radiator fan, kinked heater hose, check the coolant temp. sensor first.

If it only overheats while stopped or when driving slowly then check to see if your radiator fan is coming on. If not check the radiator fan fuse, temperature switch, relay, and the fan motor itself.

If it is consuming radiator coolant or is blowing steam out of the tailpipe then consider a blown head gasket as your problem. The engine oil may or may not look milky in color if the head gasket is leaking.

did you install the thermostat pointing in the correct direction? Is the radiator cap in good shape? Check for correct coolant level. The radiator will continue to draw in coolant from the reservior for many heat cool cycles after it has been opened.

And lastly could the temp gauge be reading high? Possible temperature sensor.

It should be on or very near to the thermostat housing which should be at the end of the upper radiator hose that is closest to the engine. If not there, follow the coolant hoses/tubes because it measures coolant temperature after the thermostat.

I take it this only happens when the vehicle is stopped & idling? If not, check radiator & hoses for blockage (since you've already replaced the thermostat & top hose) - repair/replace as needed. Next, check the coolant temperature sensor's operation (there are two sensors - one for the temp gauge on the instrument panel, the other is used by the ECM (PCM). If that one is malfunctioning (i.e., telling the computer that the engine coolant temperature is less than it actually is, The ECM (PCM) it won't turn on the cooling fans.
Since you didn't specify which engine you have (i.e., 2.4, 2.6 or 3.5), Photo locations of all three are included here.


Hope this helps.