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What would cause a radiator fan to keep running non-stop on a 1999 Hyundai Elantra?


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2006-08-09 22:13:17
2006-08-09 22:13:17

It's supposed to run, even with the key off until the radiator is cool. If it never stops you've probably got a bad temp. sensor switch.

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If a Hyundai Elantra stops running after an hour on a running speed temperature, it could be a bad thermostat. It is best to have a mechanic take a look at it to determine the exact cause.

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Bad temperature sensor unit? Cooling fan not working? Water pump not circulating coolant? Radiator plugged or restricted? System airbound? Thermostat not opening?

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on the drivers side of the engine. you need to remove air box then the hose that connects to thermostat. Still stumped? run your car until its at running temp. Then carefully touch radiator hoses. follow the colder hose to the engine and your there.

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Debris in the hoses or reservoir could cause the motor to overheat. Also, running the pump without fluid could do the same.


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