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Intake Whistle?

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Old Dec 31, 2007 | 09:47 PM
  #1  
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zamboni250
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Intake Whistle?

Recently, when starting my truck in the morning I get a whistling sound from the engine compartment. I assume that this is due to the very cold out side air temp. My truck is all stock for now so no aftermarket intake. Has anyone else experienced this? No big deal or a symptom of a big deal? Any info is always good. Thanks in advance.
 
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Old Dec 31, 2007 | 10:41 PM
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Usually an intake whistle is the result of a fitting too loose. I would check to see that all components are snug (not tight since they are cold). Pop the hood next time and grab a-hold of the any suspect tubing and that should point you in the right direction.
 
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Old Jan 1, 2008 | 10:56 AM
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Thanks for the reply. I tried that and could not find anything questionable. I will try again and see if I missed something.
 
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Old Jan 1, 2008 | 10:58 AM
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Spray something on the intake and when the whistle goes away you have found it and remember that intakes are torqued to certain specs.
Jim
 
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Old Jan 1, 2008 | 11:57 AM
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Zamboni it is probably your alternator....there is a TSB on it I believe. My 2004 does the same thing.
 
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Old Jan 1, 2008 | 12:00 PM
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Thanks for the info. I will check on the TSB.
 
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Old Jan 25, 2008 | 02:35 PM
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Originally Posted by irishammer
Zamboni it is probably your alternator....there is a TSB on it I believe. My 2004 does the same thing.
irishammer, I couldn't find the TSB on this site. Any idea where I can find it?
 
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Old Jan 25, 2008 | 05:14 PM
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I'd like to know cause my 05 does the same think the first time i thought i had a cat caught in my drive belt =)
 
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Old Jan 25, 2008 | 05:28 PM
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I don't see the TSB either...I know there were some posts on here awhile back about this...sorry for the misinformation. I do have the whistle though...
 
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Old Jan 25, 2008 | 08:20 PM
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Whistler here too!
'08 SCrew, 5.4L, RoushCharger

CW
 
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Old Jan 25, 2008 | 10:57 PM
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lol could be ur roush charger =P
 
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Old Jan 25, 2008 | 11:33 PM
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If the intake was leaking air, then wouldnt the truck not run right becaue of a loss of vacuum?
 
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Old Jan 25, 2008 | 11:34 PM
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From: Capac MI
Yet it wouldnt be leaking air it would be sucking air in right?
 
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Old Jan 26, 2008 | 07:26 AM
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My 04 does it when it is really cold and I am going at a steady speed. As soon as I give it more gas it stops. If I slow down to a steady speed again it will come back! Only when it is very cold.
 
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