Loud, Obnoxious Whistling Sound!! - Ford Powerstroke Diesel Forum
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  #1  
Old 06-09-2011, 07:21 PM
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Exclamation Loud, Obnoxious Whistling Sound!!

I have a whistling sound that is much louder than standard turbo whistle. I tried unplugging the wires to my turbo and it stopped. Plug them back in it starts agian. It is pretty much only at an idle. A lot of times if I push the brake pedal all the way to the floor it will stop temporarily or if I turn the steering wheel. It also goes away if I increase the RPMs. Occasionally when I first start it I won't get the whistle until I actually press the go pedal to accelerate and then it goes away quickly.

I'm thinking maybe up-pipe. And by doing these different things it is dragging the motor enough to change the airflow.

Any ideas?

Need help ASAP!! This noise is has me and it is embarassing to let my truck idle. Even at a stoplight.
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  #2  
Old 06-09-2011, 11:06 PM
Viking Heavy Diesel

 

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Wow that is odd, cant say I have ever heard of that Jesse. Wish I could be of some use to ya.
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  #3  
Old 06-10-2011, 12:32 PM
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I can't figure it out either. I have searched threads on here but haven't found anything that describes the issues I'm having.
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  #4  
Old 06-10-2011, 06:00 PM
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After looking at it this evening, I'm pretty sure it's the passenger-side up-pipe. There is black soot around the upper folds of the flex portion of the up-pipe. I used a bar to press on that area while the truck was idling and when I would hold pressure on it, the whistling would stop.

Now I just have to figure out the best way to fix it. I am thinking about trying this mod:

Up pipe

I'm assuming I would need to get another up-pipe that is not cracked though. Any suggestions?
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  #5  
Old 06-12-2011, 03:48 PM
Compression Ignition Addict
 

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Good time to do an egr delete with a new up pipe.
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Old 06-12-2011, 04:02 PM
My 6OH Hates Me


 

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I bought a crack proof up pipe fron innovative diesel after cracking 3 stockers. no issues for 100k miles
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  #7  
Old 06-13-2011, 12:33 PM
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Quote:
Originally Posted by Fox'sFord View Post
Good time to do an egr delete with a new up pipe.
I was thinking the same thing. Maybe even studs.

Quote:
Originally Posted by mudrunninpig View Post
I bought a crack proof up pipe fron innovative diesel after cracking 3 stockers. no issues for 100k miles
May I ask what that cost you? Just for the part.
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  #8  
Old 06-13-2011, 12:48 PM
My 6OH Hates Me


 

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Originally Posted by colberjs View Post



May I ask what that cost you? Just for the part.
$350.00 IIRC
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  #9  
Old 06-13-2011, 04:08 PM
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Quote:
Originally Posted by mudrunninpig View Post
$350.00 IIRC
Thanks. You can't buy anything for these trucks for less than $350.
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  #10  
Old 06-14-2011, 11:46 AM
My 6OH Hates Me


 

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Quote:
Originally Posted by colberjs View Post
Thanks. You can't buy anything for these trucks for less than $350.
aint that the truth
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