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Old 30-05-2019
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2010 KK sport suddenly suffered a loss of heat . No obvious issues wondering if it might be a buggered thermostat. Open to suggestions.

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Old 31-05-2019
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The heater is blowing but not hot air or not blowing at all?

Could be a thermostat. Seems like people are having success flushing the heater core and making sure their computers are updated. Sorry can't be more help - good luck!
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Old 31-05-2019
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Blower works fine just blows cold air

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Old 02-06-2019
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I think its similar to the KJ. Its unlikely to be the thermostat unless you are seeing high engine temp or engine very slow to warm up. There is probably a vacuum line to the back of the temp control knob inside that could have split or come off.
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Old 03-06-2019
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Mine done something similar. It had some sort of brain implosion. I simply turned it on to a/c and back plus twisted ever knob. That woke it up.
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Old 03-06-2019
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Back flushed the heater core yesterday and it's blowing warm to medium hot air again. Wasn't really anything that flushed through accept a little discolored water

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