Turbo Whistling louder than normal!!! - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 10-26-2012, 08:34 AM Thread Starter
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Turbo Whistling louder than normal!!!

Hello all, i use to be on here all the time because i had a 07 6.0L but sold it and am in a Cummins but a guy at my dads work said his turbo is louder than usually and whistling louder than usual... what could this be???

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post #2 of 4 Old 10-26-2012, 08:47 AM
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I would check the easy things first, possible boost leak of one of the boots. The 45-degree boot on the compressor discharge is prone for rubbing, swelling and creating a hole. Also, if it's a truck with the plastic intercooler tube, check it for rubbing and holes as well.
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post #3 of 4 Old 10-26-2012, 06:44 PM
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Don't forget about the flex joints on the exhaust y-pipe and up-pipe.

If he's running an larger aftermarket down pipe, check for rub thru where the down pipe passes around the up-pipe.

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post #4 of 4 Old 10-26-2012, 07:52 PM
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One other thing to check is the vanes on the intake turbine for a split in one of the vanes. If one is split it can act like the reed of a flute and make a heack of a whistle.

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