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Turbo making whistling sound?

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Old 03-21-2011, 11:24 PM
monwv04 monwv04 is offline
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Turbo making whistling sound?

I have drove diesels for years, but recently got one of my own. The truck is making a whistling sound when driving it, but only when giving throttle. I think its a possible intake leak or turbo problem. When the truck is at an idle or revved up in park, there is no noise at all. I had one opinion that the bearing in the turbo was going out. Looking for some feedback...has anyone heard this noise from a turbo?
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Old 03-21-2011, 11:25 PM
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got a video ot something. lots of options with that basic discription.
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Old 03-22-2011, 07:17 AM
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You have an 04 truck which could have an 03 or 04 motor depending on production date. The 03 engine had a different turbo that's known for it's whistle. The 04 had a pretty decent whistle too, but not as much. As Cheezit said, there are numerous things that could cause a whistle and it may or may not even be a problem at all.
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Old 03-22-2011, 03:21 PM
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Did it just start whistling or did it get louder? Like they said the 03 & 04 whistle louder than the rest I have an 05 and i can defiantly hear the difference I think the louder they whistle the cooler it is but, I guess if its to loud it would get annoying after a while. Upload a vid.
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Old 03-22-2011, 10:46 PM
monwv04 monwv04 is offline
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Yeah its a 04 truck but the motor and the turbo are from an 06 model. The noise is considerably loud, not the normal turbo noise. Today I took the intake boot off the turbo and checked for play in the bearing, that seemed to be fine. Its gets louder at higher rpms, I can drive it dowm the road at 65mph and feather the throttle and it doesnt make a sound, but as soon as i can into it, the noise begins. I got one opinion today, that the exhaust may be restricted and the whistle is coming from there? Has anyone had that problem. The truck has set for about a year, trying to get the bugs worked out. I will have a video tomorrow.
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Old 03-22-2011, 10:47 PM
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possibly a cracked bellows in the y-pipe.
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Old 03-22-2011, 11:02 PM
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ok thanks all help is apperciated
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Old 04-07-2011, 06:49 PM
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Mine is whitling now that I installed 4" exhaust

I just installed a 4" MBRP turbo-back exhaust on my 2003 6.0L Excursion. It never whistled before, but now it has a high-pitched whistle that almost hurts my ears. It only whistles when my boost gauge reads anything above 1.

Why would I be whistling so loud after putting on a 4" exhaust? It's pretty annoying.
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Old 04-07-2011, 07:05 PM
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juvat97 you have got the typical 03 whistle . its not going away unless you put it back to stock. Most will pay for that sound , hell i love it
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Old 04-07-2011, 07:15 PM
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Thanks wulfman--at least I know I didn't screw up something when I installed the new exhaust. Now that I know it's "normal" I will eventually learn to ignore (or even love) the sound.

I'll tell you one thing I do love already is the difference in power and acceleration. It was immediately noticeable on the post-install test drive!
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Old 04-07-2011, 07:21 PM
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Hell yea 03s rule
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Old 04-07-2011, 07:24 PM
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Yes, I'm quickly learning this!
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Old 04-07-2011, 07:33 PM
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I hate to say this but i am not to bright on this stuff and my daughter did mine so can't be much help, and she's not home now.
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Old 04-07-2011, 09:45 PM
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Quote:
Originally Posted by wulfman View Post
juvat97 you have got the typical 03 whistle . its not going away unless you put it back to stock. Most will pay for that sound , hell i love it
right there with you guys that whistle is the sound of perfect flow
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