2006 MAZDA 6
72,000 MILES
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ANONYMOUS
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Why does the interior heater blow cold air when car is idling but gets warm when brought off above idle about 2,000 rpm?
Dec 26, 2012 at 3:03 AM
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KHLOW2008
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Check the thermostat, coolant level and heater core for clogging.
Dec 26, 2012 at 2:14 PM