Question about Hyundai Motor 2003 Sonata

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Car does not blow air.

It has been cold for the last 2 days and when i turn on the heatnothing comes out. I warmed the car up and still nothing, After the carsitting in the sun for 4 hrs it started working. I am guessing theblower motor is going because i do get heat after a while. Any idea's.Could it be coolant?

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  • clombardi Jan 26, 2009

    The blower motor does not come on. You hear nothing until about 10 minutes and the blower starts working and when the heat comes out it is hot.

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For starters, do you hear the blower motor running when you turn the heat on? If it does blow is there any airflow coming from your air vents? If the blower motor runs and there is air flow from the vents there are a few other tiems to check. Veriiffy that the coolant is full, low coolant level will effect the flow of coolant to the heater core. If coolant is full you may have a clogged heater core, or one of the blend doors ( they regulate air flow between the A/C evaperator and your heater core) may be malfunctioning or the control head(temp control) is malfntioning.

Posted on Jan 25, 2009

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1 Answer

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Intermittent cooling is often caused by the components of your vehicle's AC system freezing up. Typically an iced over evaporator is the culprit. An evaporator covered in ice can't cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns. There may be numerous issues causing the icing-from a dirty cabin air filter to a blocked evaporator drain or an overcharged system. Look for puddles of water under your car-this could be a sign of a freezing problem.

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