whistlen a tune

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Old Mar 20, 2008 | 05:41 PM
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polarisjoe's Avatar
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whistlen a tune

I have 02 4.6 Ford F-150 4x4. When I started it this morning it had a whistle noise. what could it be? it seems to happen when I run at a constant speed (any speed).
 
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Old Mar 20, 2008 | 06:11 PM
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where is the whistle coming from? it could it be an exhaust leak
 
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Old Mar 20, 2008 | 06:19 PM
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it sounds like its coming right out of the air intake. I have a cold air induction from k&n with a open cone filter.
 
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Old Mar 20, 2008 | 06:24 PM
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From: Huntsville/Cypress, TX
Originally Posted by polarisjoe
it sounds like its coming right out of the air intake. I have a cold air induction from k&n with a open cone filter.
well thats probably what it is. intake tend to whistle if they have a small leak.heck mine is sealed up tight and it whistles all the time
 
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