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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.
A bad relay in the fan's circuit could cause this. I have a 94 Hyundai Scoupe and I just had to replace the thermo switch attached at the bottom of the radiator. Had the same problem. Fan wouldn't go off....ever.
When a car is hot, keep the car running and add water to the radiator. When a car is cold, you can simply put the water into the radiator.
The engine coolant fan can keep running after the engine is turned off in any car because the temperature gauge is in the radiator. As long as the radiator is still hot, the fan will keep running until the temperature gauge says it has cooled enough.
There are 2 fans that would be running while you are driving and that is normal... the compressor fan if you have the air conditioner running and the radiator fan runs to help keep the radiator cool while the engine is on.
No, but it can cause severe engine damage if you keep running the engine.
if it is anything like my 2006 Hyundai accent then you have take take off the black trim around the stero.. there are about 6 places where you need to pry. the corners and the middle areas. kind of tough to get off but just keep pulling. you wont break anything. just pull hard. after that is off all you have to do is unscrew the srews
If it is running after the engine is shut off, the relay has failed. It is bolted to the frame under the air cleaner.
to keep your engine running cool drive safe to keep your engine running cool drive safe If you don't put any water in the radiator, you will not need a water pump.
Fan relay sticking.
Dead cell in battery, some light is on and is drawing power when the car is not running, or a relay is stuck. This is assuming the alternator is good.
When removing and installing o2 sensor its wise... not to touch the end of the sensor that goes into the manifol with ur greesy fingers.. grease causes it to burn out.