Radiator fan is not engaging

2011 HYUNDAI SONATA
140,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JESSICA MERTENS
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  • 68 POSTS
My car is running about halfway on the temperature and I realized that there was a little bit of smoke coming from the grille which made me realize that the fan isn't engaging. Also the hose was is rock hard. so would this be a problem with the thermostat or my fan?
Oct 21, 2020 at 11:48 AM
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ASEMASTER6371
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  • 52,796 POSTS
Good afternoon,

If the engine is running at normal temperature, I doubt the thermostat is the issue.

https://www.2carpros.com/articles/engine-overheating-or-running-hot

https://www.2carpros.com/articles/how-an-engine-thermostat-works

As far as the smoke, it could be from a coolant leak. I would pressure test the engine and make sure there is no leak.

https://www.2carpros.com/articles/radiator-pressure-test

https://www.2carpros.com/articles/car-is-leaking-coolant

As far as the fan, if you turn on the A/C, does the fan run?

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

https://www.2carpros.com/articles/replace-electric-fan-motor

I attached a wiring diagram of the cooling fan. If it does not work we will need to do some checks to find out why it is not working.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Roy
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Oct 21, 2020 at 12:25 PM