Blown VGT/Seal? (6.4)

Powerstroke Man 6.4 · Aug 20, 2014

Truck has 260,000 miles 08 Job 3 F-250 CCSB 3.55's

So I got a high pitched noise coming from the front of the truck at 20 PSI +. I checked the uppipes and checked on the bellows the bellows are clean no soot on them and or the fire wall. I checked the IC boots no leaks clamps are tight. The manifold bolts are all there no missing or broken bolts. One thing I found is oil that seems to be coming out of the VGT.

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DTC P2263 "Turbo/Super Charger Boost System Performance" comes and goes I bought a new EBP sensor and new tube from the dealer. (code still comes and goes) Checked on the pigtail/wiring and its in great condition. KOEO EBP (Absolute) 14.5 PSI The truck has 260,000 miles I do not know if this is the original set of turbos. The truck does have a EGR delete on the truck S&B,Flo~Pro 5 inch exhaust and X4 with PIP tunes.

The truck is kinda laggy and smokes quite a bit (0-TQ Lock) once the TQ locks the smoke clears and it pulls hard until I have to let of because of the "high pitched" noise.

EBP A 48 psi to 20 psi boost (48-14.5 = 33.5 EBP) this is when the "high pitched" noise will start and go until I let off the gas.

EBPA will sometimes go to 80 psi EBP A on hard pulls. (80-14.5) = 65.5 (EBP) with (40) psi boost normal?

The VGT duty cycle is normal and comparable to my dually's duty cycle.

What you guys think? Thanks in advance

madman1234509 · Aug 20, 2014

Normally noise at boost equals a turbo issue. And by seeing the oil I'd definitely think You have a problem. Take the u pipe off of it and see it you can check the wheel for play and oil inside the turbo. Same with the atmosphere

Powerstroke Man 6.4 · Aug 20, 2014

madman1234509 said:
Normally noise at boost equals a turbo issue. And by seeing the oil I'd definitely think You have a problem. Take the u pipe off of it and see it you can check the wheel for play and oil inside the turbo. Same with the atmosphere

I checked on the atmo last month no shaft play and wheel and compressor housing is in great condition. How do I pull the U-pipe off to check on the VGT?

madman1234509 · Aug 20, 2014

Loosen the boots and there are bolts that go down through it. I'd recheck. If it wasn't making the noise before and now it is, something has changed. Hope you figure it out! May be a good excuse to upgrade

forcefed6.4ford · Aug 20, 2014

Easiest way to pull the u pipe is to loosen the 4 nuts on the support off the rocker box. That brace is a two piece. Easier to put back together than removing the bolts on top. Should only take about 20min to get it apart and out.

Powerstroke Man 6.4 · Aug 20, 2014

madman1234509 said:
Loosen the boots and there are bolts that go down through it. I'd recheck. If it wasn't making the noise before and now it is, something has changed. Hope you figure it out! May be a good excuse to upgrade

I drove the truck from Texas to California to get it shipped to Hawaii. Didnt make
any noise the whole way to California until it reached Hawaii then it appeared out of no where . I was looking at a turbo set up I'm stuck between elites torque tows or BD's new setup. I need help deciding LOL.

forcefed6.4ford · Aug 20, 2014

anything 72/59

madman1234509 · Aug 20, 2014

:whs:

Powerstroke Man 6.4 · Aug 20, 2014

forcefed6.4ford said:
Easiest way to pull the u pipe is to loosen the 4 nuts on the support off the rocker box. That brace is a two piece. Easier to put back together than removing the bolts on top. Should only take about 20min to get it apart and out.

Do I have to pull all the fuel cooler and lines off to remove the u pipe?

forcefed6.4ford · Aug 20, 2014

Yep but leave the lines hooked up. You can lay it off to the side.

Powerstroke Man 6.4 · Aug 20, 2014

forcefed6.4ford said:
Yep but leave the lines hooked up. You can lay it off to the side.

Any other tips and tricks to get it off or are we good to go?

forcefed6.4ford · Aug 20, 2014

Spending on how big your hands and fire arms are it might be nessicary to remove the battery try. But other than that its pretty straight forward.

SlowSmoke · Aug 20, 2014

That oil looks like it's coming from the seal in the crossover tube. If it's leaking oil there it's either just crankcase oil or it's coming out of your Atmo. If your gonna take it off I would replace those seals, they are cheap. Usually the high pitched squeal is from a gasket or the bellows just starting to go. But if you say all the bolts are in and no soot I'm not sure. We make a 71/59 setup that's been working great.

Powerstroke Man 6.4 · Aug 21, 2014

This is what the truck sounds like at idle.

http://youtu.be/bIbWHLYsrcA

Stroked777 · Aug 21, 2014

That oil isn't coming from the HP turbo. No way the oil could go against air current and out the seal. That seal is just leaking oil from either the LP turbo or it's from the accumulation of CCV oil

Riverside · Aug 21, 2014

I had a very similar, high pitched noise when a seal let go in the crossover pipe.

It was still sealing for the most part.
It was only down a little on total boost.
Main identifier was the noise for me.

Tore it apart and found this

tbsimmons · Aug 25, 2014

Gents this is from another thread that might help out.

tbsimmons said:
If I remember the right code it was either when I blew the EGR bellow or when the Exhaust Back Pressure sensor tool a crap. Check you up pipes for leaks. On your tuner look up the MAP and EBP with key on engine off should be atmosphere.

CT9AIX said:
When I was getting the code it ended up being the MAP sensor. I could see it happening on the DD... I would watch boost and at an idle it would be -0.2 or -0.3 then it threw the code.

Powerstroke Man 6.4 said:
I still have this code new EBP sensor and tube from ford. Code still pops every once and awhile pigtail and wiring to the sensor is on good condition. Normal boost and EBP readings with KOEO and at idle.

tbsimmons said:
What is the MAP readings?
Also have you checked the up-pipes?

Powerstroke Man 6.4 said:
My truck

MAP

KOEO

15 PSI

KOER/Idle

15 PSI

Boost

KOEO

-0.1-0.0

KOER/Idle

0.3

tbsimmons said:
Build a little boost and what does the MAP do.

Sent from the bat phone near a drilling rig.

Powerstroke Man 6.4 said:
It just builds nothing abnormal. Can I pull the sensor out and clean it or does it need replacing if its bad?

tbsimmons said:
Check your up pipes. When mine was causing problems I didn't find it at first. The way I found mine was by accident when I was looking to remove the drop pipe for the EGR coolers. If your engine is clean you can feel around them and if you have black in your hands you found it. Just be careful a blown bellow can be really sharp.

Sent from the bat phone near a drilling rig.

Powerstroke Man 6.4 said:
Bellows are clean no soot on the bellows or firewall.the pipes actually look brand new.

tbsimmons said:
I just noticed you just said you had a new EBP sensor. What's the readings for it?

Sent from the bat phone near a drilling rig.

Powerstroke Man 6.4 said:
KOEO

14.5 psi

KOER /idling

15.7 psi

EBP A 48 psi to 20 psi boost (48-14.5 = 33 EBP)

EBP A will sometimes go to 80 psi EBP on hard pulls. (80-14.5) = 65.5 (EBP) with (40) psi boost.

Does these numbers sound right?

tbsimmons said:
Yes they do. Watching MAP and EBP wiggle the connections. If up pipes are good, the sensors are reporting correct data and the turbos are not laggy or anything I would say a bad connection.

Sent from the bat phone near a drilling rig.

After hearing the exhaust and the picture of your U-Pipe along with you saying the Atmosphere is not wore out, I bet the seal is gone.
Also I would do a CCV re-route. If that much oil is from blow by and coating everything.