whistling

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someokie

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Okay my expedition has to make this whistling sound with in about 5 minutes of it being started I am not a mechanic of any kind it's coming from the driver side when I go to accurate it cuts out but comes back once I reach the speed limits any ideas on what it could be?
 
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bedrck46

Its always nice to post your year model and engine information That way people don't have to guess
 

FordandPolaris

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Maybe somebody snuck a turbocharger into your engine bay...? Do you get any sudden acceleration after a moment of being on the gas!?!

In all seriousness though, do you have a check engine light on? Does it sound like a bad bearing? Does it change pitch with different RPM's?
 
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toms89

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First things that come to my mind would be vacuum leak or IAC valve.
 
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