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Old 21st January 2010, 01:57   #1
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Default Whistling noise in AC vents

I have an Elantra and am hearing this whistling noise whenever the blower is turned on.Seems to increase in pitch when the speed of the blower is increased. I tried shutting off the different vents but still the noise seems to exist.
Before taking it to Hyundai I was going to check the AC filter to see if it is clogged.Anybody have a similar issue?
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Old 21st January 2010, 09:29   #2
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Maybe some small particle is stuck in the vent. It happened to my car once but after increasing the fan speed to max the sound became non existent
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Old 21st January 2010, 10:14   #3
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Has the air flow decreased or increased? maybe one of the vents are partially stuck.
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Old 21st January 2010, 23:32   #4
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I'm not really sure if it is a dust particle as I cycled thro all the vents at max blower speed with the other 3 vents closed.
About the air flow - it is not reduced atleast no significantly
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