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#1
10-01-2011, 02:09 PM
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squeal at startup? not a belt....
Good morning PSN,
I have recently noticed on cold starts a quick squeal at start up. I assume it has something to do with my turbo, as it starts normally, but the turbo takes a few seconds to spool. It seems as soon as it squeals, the turbo starts spooling up. Is this a big deal? turbo going south? once started, seems completely normal. I haven't checked for any play yet, going to do so today. truck has 150K on her. As always, any insight is greatly appreciated! Also, I have recently done a 4" turbo back exhaust and noticed a few more turbo farts than with the stock exhaust. Mostly when towing. Should i be alarmed? 
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#2
10-01-2011, 02:46 PM
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Re: squeal at startup? not a belt....
At a minimum, your turbo needs to be cleaned. More than likely it needs to be rebuilt or replaced.
__________________
BULLETPROOF DIESEL Biofuels Technologies 2005 F-250
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#3
10-01-2011, 06:53 PM
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Re: squeal at startup? not a belt....
Was planning on cleaning it out as soon as possible, hopefully its not toast!
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#4
10-01-2011, 07:23 PM
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Re: squeal at startup? not a belt....
I have same problem with 04. It is an exhaust leak at the collectors off manifold into the y pipes or the metal gasket in between the right up and the left one.
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#5
10-01-2011, 08:00 PM
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Re: squeal at startup? not a belt....
An exhaust leak would be an almost constant squeal, not just at start up.
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#6
10-01-2011, 10:31 PM
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Re: squeal at startup? not a belt....
nope had an 04 that had a squeal at start up once stuff warmed up and expanded it didn't squeal. tightened the #### out of the y pipe bolts squeal went away.
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#7
10-01-2011, 10:33 PM
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Re: squeal at startup? not a belt....
i am just trying to rule out quick and easy fixes people would never think a squeal would come from. i thought the bearings were toasted in turbo but turbine was loose with no tightness. fins did not hit housing.
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#8
10-02-2011, 01:17 AM
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Re: squeal at startup? not a belt....
will try and snug them up tomorrow, thanks for the tip!!!
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#9
10-02-2011, 03:33 AM
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Re: squeal at startup? not a belt....
like this?
 
__________________
Innovative Diesel Performance Thanks Eric! Direct Injection Performance - GoGoDiesel.Com, Your Source For All Things Diesel! Thanks Doug! Special thanks to Rich for helping me pick chargers for my newest mod!!
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#10
10-02-2011, 05:14 PM
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Re: squeal at startup? not a belt....
hmm, nope not quite. It starts up just fine and for about 5 seconds it sounds almost like a gasser then a quick high pitched squeal, and immediately after you hear the turbo hissing like normal.
That knock sounds rough!
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