6.0 Loud whistling sound - Ford Powerstroke Diesel Forum

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post #1 of 9 Old 05-18-2010, 10:12 AM Thread Starter
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6.0 Loud whistling sound

I have a 2006 F350 6.0 powerstroke. Last weekend when I was towing my 5th wheel trailer I was noticing a whistling / tea kettle sound around 2800 rpm's when I was about half way down on the throttle. I had the same problem last year and took it to the dealer. They replaced what they called the center section of the turbo. I did not notice the problem again untill last weekend. The truck is totally stock except for a turbo back exhaust and has 30000 miles on it. I have looked around the engine compartment and can only find a little grease on the bottom of the boot at the intercooler that comes from the turbo. I plan on taking it to a different dealer this time since they kept my truck for 3 weeks last time. Just wondering what could be going wrong.
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post #2 of 9 Old 05-19-2010, 04:05 AM
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Could be a number of things, a hole/leak in the air intake system; overheat condition; exhaust gas getting in the coolant to name a few.


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post #3 of 9 Old 05-19-2010, 08:27 PM
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Quote:
Originally Posted by fireman14770 View Post
I have a 2006 F350 6.0 powerstroke. Last weekend when I was towing my 5th wheel trailer I was noticing a whistling / tea kettle sound around 2800 rpm's when I was about half way down on the throttle. I had the same problem last year and took it to the dealer. They replaced what they called the center section of the turbo. I did not notice the problem again untill last weekend. The truck is totally stock except for a turbo back exhaust and has 30000 miles on it. I have looked around the engine compartment and can only find a little grease on the bottom of the boot at the intercooler that comes from the turbo. I plan on taking it to a different dealer this time since they kept my truck for 3 weeks last time. Just wondering what could be going wrong.
Mine does the same thing, I googled it! You would be surprised at the amount of people who have the same issue and can't figure it out. The engine fan usually runs then slows down, then the whistle sound happens. Nobody can figure it out, I have heard anything from loose bolts on the manifold to holes in the boots or up pipe, clutch fans and head gaskets.

With my issue there is no residue on the degas bottle and I am not losing any coolant. If anybody has had this issue and resolved it, there would be a lot of happy 6.0 owners. They all happen when towing heavy up a hill in warm weather while the fan is on and off.

2005 F350 Kingranch FX4 Dually
6.0L Diesel,
Elite/Liberator EGR Delete.
K&N Stage II Intake.
4" MBRP Turbo Back Exhaust, Kitty Gone
2003 International Turbo.
SCT X3 SRL Tune by Matt @ Gearhead and ID's tow and street via Adam.
3 Gauge pillar W/pyro, trans and Boost
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post #4 of 9 Old 05-21-2010, 05:34 AM Thread Starter
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I did notice some residue on the hood above the coolant bottle. It looks like some coolant came out but I am not low on coolant. The only time it makes the noise is towing my camper.
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post #5 of 9 Old 05-21-2010, 05:41 AM
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Blown EGR cooler and/or head gaskets are probably causing the problem. Mine did it also and so did my cousins. You see any white spots/residue on the degas bottle?


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post #6 of 9 Old 05-21-2010, 06:52 AM
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Mine does it from 60mph up loaded or not and its not all the time but I don't lose coolant even when.towing.

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post #7 of 9 Old 05-22-2010, 09:39 AM
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Quote:
Originally Posted by fireman14770 View Post
I did notice some residue on the hood above the coolant bottle. It looks like some coolant came out but I am not low on coolant. The only time it makes the noise is towing my camper.
I would start by changing the cap on your coolant reservoir if you haven't already done so!

2005 F350 Kingranch FX4 Dually
6.0L Diesel,
Elite/Liberator EGR Delete.
K&N Stage II Intake.
4" MBRP Turbo Back Exhaust, Kitty Gone
2003 International Turbo.
SCT X3 SRL Tune by Matt @ Gearhead and ID's tow and street via Adam.
3 Gauge pillar W/pyro, trans and Boost
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post #8 of 9 Old 05-17-2011, 08:35 PM
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Well 5th wheel towing season is back and so is my noise. Does anybody know what this is?

2005 F350 Kingranch FX4 Dually
6.0L Diesel,
Elite/Liberator EGR Delete.
K&N Stage II Intake.
4" MBRP Turbo Back Exhaust, Kitty Gone
2003 International Turbo.
SCT X3 SRL Tune by Matt @ Gearhead and ID's tow and street via Adam.
3 Gauge pillar W/pyro, trans and Boost
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post #9 of 9 Old 07-06-2011, 09:24 PM
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Well just the other day I took my egr out to clean it up because it was clogged, I did run it for about an hour with it clogged. Once I cleaned it out and put it back in I noticed that teakettle sound, I was, and still am confused why it is making this sound. And it did not do it before I cleaned the egr.
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