Question about 2006 Hyundai Elantra 2.0

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Overheating When I turn the air on, the temperature gauge needle starts to climb and unless I turn the air off, it will go all the way to HI. The car has not been cooling well at low speeds for a while, but the shop says everything's fine as far as refrigerant level. Is it a belt, a hose collapsing, the thermostat?

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  • MJBA Aug 03, 2013

    I wrote in about this cooling problem and got lots of good suggestions. It turned out that the car was a half gallon low on coolant. No leaks, but we had been having really hot weather for a couple of weeks and the car sits outside. I had just had the car serviced and checked a month before, and this was the first time for this problem, but I'll certainly check the radiator more often now. Thanks to everyone.

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  • Hyundai Master
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The most common cause is lack of air flow thru the radiator.
Either something is blocking air flow, or the cooling fan is not working as it should.

Posted on Jul 17, 2013

  •  Stephen
    Stephen Aug 03, 2013

    FYI - the cooling system is more or less a sealed system. So unless you have a leak, you would not need to add coolant more than once a year. It does not really evaporate like regular water does.

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