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Help! 2011 Pilot EXL Anyone know what this noise is? Does it at start and stays on while driving. It goes away for a day and comes back.
 

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Logan, I don't know what the whine is for sure, but my guess would be either the alternator or the power steering pump. I am assuming that the AC compressor is not running. Doesn't sound like the compressor anyway.
Try loading the alternator by turning on headlights and heater fan. See if the sound changes with load. Try turning the wheel slightly left and right. See if sound changes with steering action. This should help to narrow it down.
 

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The car is at the shop and of course the sound is not happening....
Can’t diagnose without the sound I guess...
Thanks
 
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