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Whistle from front end

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Old Feb 17, 2011 | 02:30 AM
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Default Whistle from front end
I have a 2005 f-150 4.6 and everytime it gets to about -10 and below i hear a whistle from the front end any ideas??
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Old Feb 17, 2011 | 06:42 AM
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Same thing here. I've read it may be some wierd thing with the alternator.
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Old Feb 17, 2011 | 11:11 AM
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06 5.4 same problem, but it doesn't have to get that cold... it sings when it gets down to around 32-33... goes away when the engine warms up.
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Old Feb 17, 2011 | 11:31 PM
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Originally Posted by 4EverYoung
06 5.4 same problem, but it doesn't have to get that cold... it sings when it gets down to around 32-33... goes away when the engine warms up.
It goes away after awhile but once the throttle hits a certain point it'll do it again... So I guess this problem happens with most of these trucks
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Old Feb 18, 2011 | 12:08 AM
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Its the air filter! That's what a cold air sounds like all the time, my truck does that too when it's around 30 or colder
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Old Feb 18, 2011 | 09:10 AM
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My truck does it too when it's 10 degrees and below, usually right around 1800rpm.

all my research has indicated it is just a nuisance and doesn't really effect anything.
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Old Feb 26, 2011 | 10:28 PM
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I found out what's causing the problem it's the alternator so I ordered a new re manufactured one which will fix it finally
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