Possible Turbo issue

[01 blue 7.3]

Sitting in a drive threw and the "jet noise" went away and doesn't the truck is a pooch now. Still has turbo but lacks power.

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[weazel]

Pull the intake and see how easy it spins


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[01 blue 7.3]

And if it spins easy?

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[bpb424]

VGT issue with it stuck open?

 

[01 blue 7.3]

VGT issue with it stuck open?

Sorry for the ignorance but what's VGT?

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[01 blue 7.3]

I also failed to mention that its a 04 6.0

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[bpb424]

Sorry for the ignorance but what's VGT?

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no prob man
it's a variable geometry turbo.

http://powerstrokearmy.com/forums/attachment.php?attachmentid=9907&stc=1&d=1348797108

I'm no expert, but your turbo has veins inside of it to change the size. It's smaller for quick spool up and then veins "open" to push more air. Something electrical could cause the veins to stick open or soot build up could cause them to stick open.
Have u ever noticed when you first start your truck it sounds like a big block v8 then a few seconds later it starts to whistle? that's the veins closing and causing that.

Just throwing out ideas trying to help.

 

[01 blue 7.3]

I see theres a plug on the turbo. What does that do?

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[01 blue 7.3]

What if the veins are stuck? Easy fix or does that mean turbo is shot?

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[weazel]

Oh, I thought it was a 7.3, check the EBP sensor, if that is not the issue, then pull the turbo, and see if you can clean the vains, and such. If still no good, new turbo time. Happened to me


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[01 blue 7.3]

Oh, I thought it was a 7.3, check the EBP sensor, if that is not the issue, then pull the turbo, and see if you can clean the vains, and such. If still no good, new turbo time. Happened to me


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Is that on the passenger side of turbo? Any way to check that other than buy a new one?

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[weazel]

Is that on the passenger side of turbo? Any way to check that other than buy a new one?

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There is a fitting on the drivers side manifold, follow the tube up should be right next to the upper radiator hose. It should throw a code, but I don't recall what code it is


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[01 blue 7.3]

Just found a bunch of oil under the turbo on the motor.

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[weazel]

Just found a bunch of oil under the turbo on the motor.

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New turbo time.


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[01 blue 7.3]

New turbo time.


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I feared that. Im going to investigate more tomorrow.

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[01 blue 7.3]

Im not getting any oil/smoke from the Exhaust.

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[weazel]

Fire it up, and check the oil supply line, it could be leaking from there, it need oil to actuate the vains


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[01 blue 7.3]

Fire it up, and check the oil supply line, it could be leaking from there, it need oil to actuate the vains


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Ok. What could cause the supply line to be messed up?

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[weazel]

Ok. What could cause the supply line to be messed up?

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No idea, just a thought, I like to check everything before I rip the truck apart


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[01 blue 7.3]

Ok. In just trying to get some ideas of what might be the issue so i know where to start

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