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That is probably antifreeze steam. Your heater core is a small radiator used to heat your car. The engine heats the antifreeze and circulates it through the heater core. Your blower blows heat through the core (radiator) into the car, and warms you. If the core gets a small leak, it will put out steam.

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โˆ™ 2011-03-07 17:26:49
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Q: What can cause white smoke coming out of vents?
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