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What's causing this horrid sound?

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Old Dec 17, 2010 | 10:03 PM
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2006powerstroke90
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What's causing this horrid sound?
Well my turbo seems to make a nasty "woosh" sound figured I would check all connections to the turbo up pipe and down pipe. The sound will only happen when the turbo spools up then when I let off it's a woosh sound. Turbo spools great and whistles great.

I took the up pipe clamp off and it was sealed up perfectly. No gap anywhere around the whole connection. Put the clamp back on nice and snug.

Checked my down pipe all sealed great no gap anywhere around the connection.

Any ideas?? Thanks
 
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Old Dec 17, 2010 | 10:29 PM
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No bypass valve in these trucks, so the built up pressure has to escape through the intake.
 
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Old Dec 17, 2010 | 11:56 PM
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Are you under hard acceleration? or towing hard when you let off. Or normal driving?
 
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Old Dec 18, 2010 | 06:09 AM
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No load or towing. Just hard acceleration
 
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Old Dec 18, 2010 | 08:23 AM
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Originally Posted by 2006powerstroke90
Well my turbo seems to make a nasty "woosh" sound figured I would check all connections to the turbo up pipe and down pipe. The sound will only happen when the turbo spools up then when I let off it's a woosh sound. Turbo spools great and whistles great....
Classic turbo flutter concern. As described the turbo is building boost (excessively) in the charge air cooler, tubes and intake manifold that rushes back out of the intake on deceleration. This is an indication that your turbocharger is sticking or stuck. Your turbocharger requires servicing. I also want to caution you that when this condition exists on trucks with older calibrations head gasket failures are more likely to occur particularly when towing. Have this condition properly diagnosed and corrected immediately.
 
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Old Dec 18, 2010 | 08:27 AM
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Is this something I can do myself? Or should it go to the dealer?
 
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Old Dec 18, 2010 | 08:49 AM
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If you have to ask you should take it in...
 
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Old Dec 18, 2010 | 08:51 AM
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Just when I thought I was done putting money into the truck.

It's just the turbo that needs servicing?
 
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Old Dec 18, 2010 | 09:00 AM
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there are multiple how to articles on turbo reconditioning assuming the actual turbo is the issue I would try it myself first
 
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Old Dec 18, 2010 | 09:02 AM
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Diesel Technician Society
 
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Old Dec 18, 2010 | 09:03 AM
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Well it never made the noise until I took the turbo out to do the egr delete and oil cooler
 
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Old Dec 18, 2010 | 09:15 AM
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you should have mentioned that little tid bit sooner IMHO
 
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Old Dec 18, 2010 | 01:43 PM
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Is it something I could have put together wrong?
 
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Old Dec 18, 2010 | 04:16 PM
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Originally Posted by 2006powerstroke90
Well it never made the noise until I took the turbo out to do the egr delete and oil cooler

Did you take the turbo apart?
 
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Old Dec 18, 2010 | 04:25 PM
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no loss of boost?
 
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