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Old 12-08-2011, 04:11 PM   #1
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Whistling Heater

My 2011 Sport makes a whistling noise when ever the heater blower is running. I did not have the noise this summer when I ran the A/C. If I turn the blower off and back on again sometimes it stops but never for long. I am not sure if it is the blower or possibly something to do with the various doors that direct the air through the vents and defroster. The noise happens no matter what setting I use, Any ideas before I take it in for warranty?

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Old 12-08-2011, 04:58 PM   #2
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Yep! I got the same....just noticed it now that it's rainy going on to snow....defroster time....not loud.. Turn up radio and it's gone :-)

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Old 12-08-2011, 05:01 PM   #3
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Never heard of that happening
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Old 12-08-2011, 05:09 PM   #4
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I have the same thing on my 2011 Sahara. Dealer has tried to fix twice. The whistle is back. Guessing that when it is in their shop, the temperature is warm so it doesn't act up.

It goes away when you open windows and quiets down when you are moving.

Dealer has been focusing on the vent in the tailgate.
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Old 12-08-2011, 08:36 PM   #5
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Mine does it... most noticeable on lower fan settings.
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2011 JK Sport: 6speed, ragtop, 3.73 with the lasers and the disco ball.
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Old 12-09-2011, 09:30 PM   #6
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check your vent doors, had mine barely open and it whistled, close it or open wider and it was gone
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Old 12-16-2011, 10:35 PM   #7
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My 2011 does the same thing,had it at dealer twice and they couldnt fix it. So i looked at it myself (im a kia technician) and found when the recirculation door is not sealing properly alowing air to pass and whistle. If you remove your glove box and look straight back you can see a mesh cover that is removable and behind that is the recurculation door. When that door is closed (white showing) turn on blower motor with all doors and windows closed and it will whistle. Use a small screwdriver and lightly push down on door and whistle stops. If you turn blower on and set it to vent and push the recurculation button the door moves up blocking fresh air intake and whistle stops. Push recurculation button again and door moves down and just as it is fully closed it will move up just a little causing noise. Since the dealer was no help i got some thin foam tape(foam on one side, sticky on other) and stuck it on hvac box where the recurculation door sits. No more anoying whistle noise. Hope this helps you as it helped me.
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Old 12-17-2011, 01:50 PM   #8
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^^ sounds like a plan. Im going to try it out as soon as I have a chance. My 2011 started doing this a couple of months ago and is driving me crazy! I didn't think about it but I guess it did start about the time I started using heater.
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Old 12-17-2011, 02:00 PM   #9
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Mine whistles when it doesnt know the words!
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Old 12-17-2011, 02:06 PM   #10
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Actually mine turned out to be a door seal air leak. It was at the bottom of the passenger door and they thought it was the heater till they popped that door open. Replaced the door seal and it was gone!

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