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Kia Sportage

Why does a 2000 KIA Sportage stay cold after after flushing the radiator and replacing fluids?

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Wiki User
November 26, 2008 3:35AM

Hard water, and calcium can build up insite the hoses and get released in chungs during the flush process. These pieces can get caught in the thermostat and cause it to fail. You can try removing the thermostat or just replace it as it is an in-expensive part. You might consider re-flushing the radiator as more calcium might hit the thermostat after replacing it.