6.0 weird noise when boosted - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 04-17-2011, 05:49 PM Thread Starter
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6.0 weird noise when boosted

I have a weird noise when my truck builds boost. its hard to describe, nothing like the turbo fart when you let off the go pedal, its like a buzzing whistle sound. i dont smell any exhaust under the hood so maybe not the up pipe. i have studs, sinister delete, stock air intake, cfm large mouth. any suggestions as where to look.oh yeah i have a new coolant cap when the studs were done bout 10k miles ago. sounds sorta like the cap did when i blew the gaskets but louder so its gotta be pressure bleed. right

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post #2 of 12 Old 04-17-2011, 06:06 PM
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I just got my oil cooler and egr cooler done at a local dealership and have noticed a sound similar to this. It increases in loudness the higher the rpm's get and once I let off the pedal it slowly decreases. It is not the turbo whistle, it last almost twice as long as the turbo whistle when I left off the pedal

2008 F250 KR CCSB 4x4
SCT Livewire
Banks Ram Air Intake
Flo-Pro 4" downpipe back
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post #3 of 12 Old 04-17-2011, 06:22 PM Thread Starter
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yep you got it.

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post #4 of 12 Old 04-18-2011, 11:17 AM Thread Starter
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anyone got any ideas on this

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post #5 of 12 Old 04-20-2011, 08:14 PM Thread Starter
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Anybody got an answer.

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post #6 of 12 Old 04-20-2011, 08:35 PM
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I hear the same sound on my 07 and its stock.....for now
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post #7 of 12 Old 04-22-2011, 08:58 PM Thread Starter
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Anyone else got an input

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post #8 of 12 Old 04-26-2011, 05:25 AM
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Mine did it too, a very annoying whistle when building boost the more boost the more whistle. It was a crack in the Y-Pipe. 4months later it started again, this time it was a crack in the Up-Pipe.

2007 F250 XLT
6.0 POWERSTROKE
EGR DELETE KIT
AFE COLD AIR INTAKE
MAGNA FLOW EXHAUST
6" FABTECH DIRT LOGIC 4.0
37/13.5/20 TOYO OPEN COUNTRY
AMP RESEARCH POWER STEP
SCT X3 TUNES BY IDP & GEARHEAD PERFORMANCE
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post #9 of 12 Old 04-26-2011, 05:48 AM Thread Starter
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Quote:
Originally Posted by DDBCK View Post
Mine did it too, a very annoying whistle when building boost the more boost the more whistle. It was a crack in the Y-Pipe. 4months later it started again, this time it was a crack in the Up-Pipe.
great, how much was the y pipe to fix. the up pipe is what i replaced with the sinister egr delete kit with stainless wasn't it.

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post #10 of 12 Old 04-26-2011, 06:03 AM
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Yes. The pipe was $250ish but the labor killed me from the Stealership it was $650ish. All to gether it was $947 w/tax and all. A local garage could have done it cheaper by $200, I checked afterwards oops.

2007 F250 XLT
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EGR DELETE KIT
AFE COLD AIR INTAKE
MAGNA FLOW EXHAUST
6" FABTECH DIRT LOGIC 4.0
37/13.5/20 TOYO OPEN COUNTRY
AMP RESEARCH POWER STEP
SCT X3 TUNES BY IDP & GEARHEAD PERFORMANCE
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