Bad Turbo Design for the 2006 6.0?

[RAR442]

3rd week with my new F250. 500 miles on my new turbo. I'm beginning to hear that bad bearing sound again, and my boost seems low too. I'm gonna be pissed if I have to leave at the dealer again. Better start reading up on that Lemon Law. What kind of boost are you guys getting?
Here's the original problem.

http://forums.thedieselstop.com/ubbt...31&fpart=1

[04crew]

turbos dont run very long with "bad" bearings. a mile would be a long time.

[hamp]

I have 142 miles on my rig now!
The Turbo sounds great so far seems to start to spool faster then my 7.3?
can start to here it around 1200 is this normal?

[bigk7223]

This may sound stupid, but are you sure it's not the engine cooling fan kicking in and out. The fan on my 06 is extremely noisy when it engauges. It makes a lot more noise than my 96, 7.3 or my 03, 6.0 did. The 06 seems to have a lot more turbo lag than either of these trucks also.

[firesoutmatt]

Wonder if they checked to make sure it was getting oil to the turbo. Two turbos that quick seems like the oil line is blocked. You may want to suggest that before its three turbos.

[noa1794]

There has been a lot of trouble with the 6.0L turbos since its inception in 2003. Ford is going to a new turbo supplier for 2007, the rumor is.

Before I get jumped for this comment let me say that I am repeating what my own dealer's Diesel tech told me AND what Ford techs have said in this forum several times.

[jdk]

Yeah I'm sure Garrett dosen't know anything about making turbo's [img]/ubbthreads/images/graemlins/rolleyes.gif[/img]

[PerryB]

About 28 psi indicated under full throttle, with a brief reduction to about 20 psi for shifting events.

[noa1794]

Facts please.

[VIZARD]

Fact? Or Rumor?

IMO, in the grand scheme of things, 6.0 turbo failures have been very low. Many are a result of the cascade effect related to the EGR Valve issues. Not necessarily due to a bad design.

It is rumored that the Twins will have a non variable vane strategy and will be inline...smaller unit feeding a higher volume unit.

Your comment is the first I have heard of a change of turbo mfgs. Not saying that changing is good or bad, just the first time I have ever heard of it.

[aussiekeeper]

JDK, I agree, Garrett has probably made over 2 million turbos, I'm sure they know their business.........




Ron

[Got_One_Too]

[ QUOTE ]
Fact? Or Rumor?

IMO, in the grand scheme of things, 6.0 turbo failures have been very low. Many are a result of the cascade effect related to the EGR Valve issues. Not necessarily due to a bad design.

It is rumored that the Twins will have a non variable vane strategy and will be inline...smaller unit feeding a higher volume unit.

Your comment is the first I have heard of a change of turbo mfgs. Not saying that changing is good or bad, just the first time I have ever heard of it.

[/ QUOTE ]

Curious, where did you get your statistics from??? (turbo failures have been very low) I have had two turbo's replaced on my truck with less than 18,000 miles on it... Second turbo replacement took 14 days to complete because my service department had trouble locating a replacement one...

The current VGT design already functions as a small and a large turbo all in ONE TURBO without a wastegate to control turbine speed... Why if your rumor is true (and I believe it is) go to a non-veritable vane turbo with a small one feeding a larger one inline if the current VGT has NO design problems???

VGT technology has been around for quite somtime, the current 6.0 VGT cascaded with the current EGR strategy in my opinion is a bad design... Carbon and soot can develope on the turbo vanes keeping the vanes from fully opening or closing... Throw in a sticking EGR valve and the air management system frankly does not work properly...

My truck currently is not the same truck I purchased because Ford reflashed my PCM , taking my pilot injection away, increasing injector pulse width, changed my EGR strategy along with the fuel injection systems and OBD... What will be next???

Maybe at $2200.00 a pop replacing VGT turbo's is getting QUITE EXPENSIVE for Ford, Garrett or Navistar (not sure who's footing the bill) and that's why we are going to see a new non-veriable turbo in the future design [img]/ubbthreads/images/graemlins/smile.gif[/img]...

[GaryCrow]

edited to remove inflammatory remarks

[jdk]

Even though VGT has been around for quite a while, it's still a pretty complicated design, so it wouldn't surprise me if we lost of a few turbo's along the way due to this.. I certainly wouldn't consider a stuck VGT vane as a reason to throw away a turbo..

I've not seen a lot of full blown failures caused by manufacture defects, IE, compressor wheel blowing apart, housing cracks, etc. I'm sure a few people have managed to break the stock turbo by using it beyond it's intended design, but that is not Ford, Garrett, or navistars fault.


So, how many failures can we chock up to sticking vanes? What about faulty oil supply? I'd be interested to see how many were actual manufacturer defects.

[04crew]

i havent heard of even one turbo failure on a 6.0. garret has only made 2,000,000 turbos? im absolutly sure they have made way more than that. even my vw new jetta has a garret turbo! my cat and cummins big trucks had them too.