Turbo whistling - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 11-07-2008, 05:03 PM Thread Starter
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Turbo whistling

Well I finally got all the studs/head gaskets/HPOP issues straightened out and have been driving it since Saturday without problems,,,, until this AM. I noticed an intermittent whistle coming from the engine compartment at start-up this morning. Give it a little gas and it goes away, and then comes back. It is also noticeable at driving when around 1500 - 2000 RPM's. Sounds like a high pitched vacuum leak but it's coming from the area where the turbo is mounted. What could it be? Turbo bearings, Turbo Boot leak?????? I haven't had a chance to look at it thoroughly yet and am looking for suggestions.

Thanks in advance!
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post #2 of 11 Old 11-07-2008, 05:06 PM
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6.0

did you crack your up pipe?
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post #3 of 11 Old 11-07-2008, 05:09 PM Thread Starter
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I hope not.

Wouldn't I hear exhaust too if that was the case?
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post #4 of 11 Old 11-07-2008, 05:23 PM
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psd

I just know alot have cracked that up pipe.may what to check that in the morning.when motor is cold.
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post #5 of 11 Old 11-09-2008, 04:24 PM Thread Starter
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When I unplug the turbo solenoid the noise goes away. I suspect internal problems with the turbo but what could it be?
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post #6 of 11 Old 11-09-2008, 04:36 PM
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january 2003 6.0 F-350 Lariat 4x4 cc with 08 long bed. recon cab and mirror lenses, torqueshift(reman on 9-03-09) with three disc billet convertor(500 rpm lowered stall speed),mag-hytec deep tranny pan,, 8" fabtech lift w/ 37" iroc super swampers on helos,pro comp ladder bars, custom sct x3 with tunes by eric @ innovative diesel, boost and pyro,edge insight, afe, 4" straight piped, ARP headstuds, banks intercooler & high ram intake. engine mods & maintenance by first coast diesel performance.
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post #7 of 11 Old 11-09-2008, 04:48 PM
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maybe a hole in your intercooler boots

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post #8 of 11 Old 11-09-2008, 05:14 PM Thread Starter
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The boot feels spongy to me so I'm gonna replace it tomorrow but I cannot find a leak if there is one. The noise is definately coming from the turbo area of the engine and to me it sounds like a shaft/bearing squeal, comes and goes.
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post #9 of 11 Old 11-09-2008, 05:19 PM
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I'd check your clamps on up pipe at turbo. Look for soot that may be yer sign.

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post #10 of 11 Old 11-09-2008, 05:21 PM
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Quote:
Originally Posted by BirddogTN View Post
The boot feels spongy to me so I'm gonna replace it tomorrow but I cannot find a leak if there is one. The noise is definately coming from the turbo area of the engine and to me it sounds like a shaft/bearing squeal, comes and goes.
You can pull your boot back and inspect impeller. You may have some bent blades You will have some up and down movement on blades but should not be rubbing housing. Good luck!

Lloyd Vice Director of Virginia Strokers
2006 F350 6.0L SuperDuty Lariat 4x4
Magnaflow 4" S.S. Turbo Back, Lost Cat, 5" S.S. Tip
Custom Tuned SCT
6" Fabtech 4-Link Suspension- Dirt Logic Shocks-Dual steering Stabilizers
S.S. Brake Lines
Fumoto oil Drain Valve
Accufab Polished Elbow
BFG 37"x12.5"x18" Load "D" All Terrains
ARP Head Studs
EGR Delete
'03 Turbo Swap


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