What does the Turbo sound like just before it fails? - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 06-13-2007, 10:25 PM   #1 (permalink)
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What does the Turbo sound like just before it fails?

hey guys-

I was towing my trailer and bikes this last weekend up the grapevine going to Gorman and the 6L started to lose power when the engine compartment made this super high pitched squeel followed by a loud buzzing sound. Then, a small pop and huge power loss.
Had to crawl at 20MPH up the grade.

Question is does anyone have a Turbo Failure on the 6L that can recall exactly what it was like just before it dumped? When I got back, I dumped the oil and there was powder like metal in the oil. Took to the dealer and told them I believed the Turbo was on it's way out.
They said they did a boost test and all was OK. I said BS, pull it out and put a new one in.

Any idea's, Grampy, what do you think?
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Old 06-13-2007, 10:47 PM   #2 (permalink)
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Re: What does the Turbo sound like just before it fails?

I had very similar symptoms. Mine never made the pop noise, or drastic power loss. But I did get a high pitched whine and a noticeable power loss. I brought it to Ford last week, they replaced headgaskets and also told me my turbo was fine. I pick the truck up tomorow and see how it pulls the trailer this coming weekend. I'll do my best to try and post back with my results.
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Old 06-13-2007, 11:17 PM   #3 (permalink)
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Re: What does the Turbo sound like just before it fails?

How do they know the turbo is "fine" without taking it apart and looking at the vains and such? The dealer I am at told me the same thing. I told them to replace it, or eat it when I bring it back and feed it to them after it fails.

Please, do repost after you tow. I was suppossed to go back to SoCal this weekend, but I am so worried about dying hard on the Grapevine, I wont go without a new or recon turbo.
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Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-13-2007, 11:43 PM   #4 (permalink)
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Re: What does the Turbo sound like just before it fails?

[ QUOTE ]
How do they know the turbo is "fine" without taking it apart and looking at the vains and such?

[/ QUOTE ]
that's the $$$ question right there. do you have any gauges or mods? where ya at in california? northern cal I assume..
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Old 06-13-2007, 11:51 PM   #5 (permalink)
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Re: What does the Turbo sound like just before it fails?

Darsey-
I'm in Morgan Hill, West Side.
No Mods. Bone Factory Stock.
Trucks at Ford Store in MH.

See you ride too. D36?
Me CC and Desert.

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<<<<<<<<< | >>>>>>>>>
Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-13-2007, 11:57 PM   #6 (permalink)
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Re: What does the Turbo sound like just before it fails?

[ QUOTE ]
Morgan Hill, West Side.
No Mods. Bone Factory Stock.

[/ QUOTE ]
im over by paradise valley. that's cool.
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Old 06-14-2007, 12:01 AM   #7 (permalink)
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Re: What does the Turbo sound like just before it fails?

you have any issues like this?
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<<<<<<<<< | >>>>>>>>>
Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-14-2007, 12:51 AM   #8 (permalink)
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Re: What does the Turbo sound like just before it fails?

no. see sig. did you take it to the ford store?
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Old 06-14-2007, 12:59 AM   #9 (permalink)
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Re: What does the Turbo sound like just before it fails?

There's enough different ways that a turbo can fail that there isn't one particular sound that will announce it's passing... I had one, a long time ago that the owner stated that he thought the transmission was going out... a horrendous scraping noise any time the turbine changed speed. Other failures will make no noise at all....

Everything starts with what happens at the service desk.... How the customer explains the concern - how the service writer interprets it and writes it on the contact sheet... Word of advice at this point.... The contact sheet should contain enough info for the tech to either reproduce the concern or decide if he is going to undertake any particular diagnostic steps (can you smell the disclaimer coming?), if any at all.

If they performed the boost test that I think they did, the engine never exceeds 1200 rpm. This is a pretty good test since it checks VGT operation and other factors but it isn't the be-all, end-all test. Depending on the information I am given on the RO (which, in our store, at least, will have the contact sheet stapled to it - the RO is a pretty terse description of hwat might be on the contact sheet), I might choose to remove the intake ducting and inspect the impeller for signs of damage and check the shaft for "wall slap"... I might choose to road test the truck to see if I could reproduce the symptoms as described.... I might choose to monitor real world boost pressures during the road test... But I do have to be lead there, to a certain degree, by what I have for a description. I need that <something>... be it in description or what I can recreate in a road test...

And here comes the disclaimer.... This is how I would handle it... This is how my guys would handle it... I can't road test everything that leaves our shop, but these guys have never, ever heard me say "that's good enough" - it's either good - or it isn't.

Unfortunately, and this subject is discussed regularly on another venue, not every shop or every tech shares these values or high standards. And the reasons can be many.... inadequate techs is a big one. These engine management systems are complex and, as FordDoctor so eloquently states, they do separate the men from the boys. And I'm not trying to say that I'm anything special.... I spend a lot of time thinking very hard about the data I have.... logic drives every decision. I digress... Inadequate techs... techs that are faced with DPs that don't offer what training Ford supplies - or production numbers that are unrealistic - or wage packages that reward speed over customer satisfaction... and a lot of situations I can't even imagine.

I apologize for the length of this reply and I apologize that it wandered so much off topic... but there is one last comment....

When you sign the contact sheet... read what the service advisor has written... remember that the tech knows nothing of the situation and needs to know the key factors... and if what he/she has written isn't what you said, don't sign it. This contact sheet is the single most important document in the paper trail that will come from this repair (from a customer satisfaction standpoint).

Thanks for reading...
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Old 06-14-2007, 01:07 AM   #10 (permalink)
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Re: What does the Turbo sound like just before it fails?

yep, It's there now.
__________________
<<<<<<<<< | >>>>>>>>>
Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-14-2007, 01:12 AM   #11 (permalink)
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Re: What does the Turbo sound like just before it fails?

Thanks again Grampy.
The thing that got me was the metal in the oil. Looked like metal flake paint, but more powder like. Also, the high pitched screem, then the buzzing rattle sound, then power loss and boost loss. This only occured when towing uphill. Oil also had a burnt look to it, more than when I had changed it in the past.

Now the turbo also makes a sound at idle like an air leak sound, and is much louder than before.

My concern about the metal in the oil when I dumped it after the trip. Never have seen that, and I am pretty anal about fluid control and cleanliness of fluids, every 3k.

Does that help a little? Does this description sound like ea turbo issue, and BTW, this is exactly how I described it as well as other info to the Service Manager and Writer on the sheet.
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<<<<<<<<< | >>>>>>>>>
Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-14-2007, 01:25 AM   #12 (permalink)
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Re: What does the Turbo sound like just before it fails?

check your pm's jimbeam
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Old 06-14-2007, 02:24 AM   #13 (permalink)
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Re: What does the Turbo sound like just before it fails?

A 'pop' and an 'air leak sound'. Split intercooler, tube or boot?

Good luck.
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Old 06-14-2007, 02:31 AM   #14 (permalink)
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Re: What does the Turbo sound like just before it fails?

Btravelen sounds like a path- but why the metal in the oil then?
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<<<<<<<<< | >>>>>>>>>
Me, the dog, shotgun, OL and Jim Beam.
05 F350 Fx4 6L Lariat
02 Weekend Warrior FS2600
04 HD FLHRSI, more chrome than a man should be allowed to have.
03 Nissan Supercharged Xterra for the OL.
74 HD SX 125 for the trails (HD made Dirt Bikes?).
07 Honda XR650R King of the Desert
07 Honda 450X Cross Country
06 Honda CR230F (wifey needs a bikey too)
07 Honda CRF100F (kiddie's ride too)
05 AKC Weimaraner, most reliable game bird dog on the planet.

Git some at:
http://photos.thedieselstop.com/show...at=500&thumb=1
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Old 06-14-2007, 03:46 AM   #15 (permalink)
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Re: What does the Turbo sound like just before it fails?

My truck makes exact same noise when pulling hard up a hill.

I will be on high rpm, high boost, temp starts to climb, clutch fan is on full blast. After about a minute or so of the grade it will suddenly start to whine really loud. If I let off the throttle, engine eases off and whine stops, and then I have to get back on it for a bit for whine to come back.

I also have the infamous turbo surge while cruising towing.

I have started to have what I would consider the Turbo getting stuck. I will turn truck on and have no boost at all. Massive black smoke, and codes related to turbo position being out of range and boost sensor no-op. I can "unstick" it by driving hard and getting the engine hot.

Dealerships have looked at it but dont find anything wrong and cant reproduce it... yet I have it happen all the time. Im about done with this truck.
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