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6.0 intermittent turbo noise and loss of boost without codes

9.8K views 14 replies 4 participants last post by  michael324  
#1 ·
Hey guys I have a mostly stock 07 6.0 with 125k thats always run like a champ and today I was driving to a friends house and as I was accelerating a loud grinding/spinning type of noise came from under the hood so I pulled over and looked and didn't see anything that looked out of the ordinary, I was running the sct x4 canned street tune but i was being pretty light on the pedal because normally I only run the trans only tune. So after that happened I immediately returned the truck to stock, thinking maybe the canned tune just sucked or something, I kept driving and for about 20 min it was fine. My first thought was the turbo so I kept an eye on the stock boost gauge and everything seemed to be fine and then as I was getting on the highway while accelerating moderately it happened again and this time I looked at my boost gauge and it was showing 0. This immediately backed up my theory that the turbo was the problem so I pulled over and removed the boot going to the turbo intake and noticed that the input shaft seemed to have too much play in it and I think the turbine fins looked a little chewed up on the tips, I need to go back out and look again because i had the family with me and it really messed up our day... But this made me think that the noise was the shaft getting out of place and so the fins were maybe rubbing the housing? So i drove it real easy back home with no issues, it was showing boost on the gauge but i made sure to keep it below 10psi so as not to mess anything up anymore. I have a scangauge II and also the sct x4 and neither one read a code and I had no CEL, which seemed weird to me considering i had 0 boost at one time and didn't even get a turbo underboost code?? So does it sound like I need a new turbo, or could I possibly rebuild it and how could I tell if a rebuild would fix the issue vs. a replacement? Any help is really appreciated, thanks guys.
 
#3 ·
Even though that's a good looking turbo for $700 I was really hoping that I could repair mine for less if possible. Does it seem like mine is shot in your opinion? I'm not an expert but I know my way around an engine well enough to do moderate repairs, just don't really know much about turbos.
 
#8 ·
I would like the WW2 but don't really need it and don't really want to spend the money on it if my compressor is still good and I don't think that kit has everything needed in it because I called the ford and international houses and they don't offer a rebuild kit just a new turbo only garrett sells the kits for a rebuild I guess. I still need to take the turbo off, its basically been raining/iceing for the last week here and no garage unfortunately... But I went out yesterday and took of the intake boot to get another look and the compressor fins were definitely rubbing against the housing but luckily I think I might have caught it in time hopefully. I took some pics and sent them to a buddy of mine who rebuilds turbos and he said that as long as the fins aren't chipped I should still be able to just rebuild it instead of a full replacement and the housing looked good still too just a few scratches from when it rubbed but it didnt actually look marred up or anything. I ordered a garrett rebuild and the new oil feed/drain lines so hopefully thats enough to take care of it but we'll see this weekend haha. Ill post up the pics I took.
 
#10 ·
Look at wpe diesel. They have rebuild kits available for cheap. Talk to one of there guys and they will tell you what you need and hook you up. They will answer any questions you have and help anyway they can. I just ordered my 2nd rebuild kit from them today.
 
#11 ·
how much up and down play.
 
#12 ·
Yea I saw wpe diesels 1.5 rebuilds and i really wanted one but the wifey wouldnt let me spend the money yet :blahblah1: haha maybe down the road ill just try and save for a brand new KC 1.5. I actually ended up buying a garrett rebuild kit and the upgraded feed/drain lines because I noticed that I had some oil residue around the feed line so that might be what casued it to fail :dunno:
 
#14 ·
yes i did,you apparently you have to much up and down movement, so a rebuild is in order if the thing hasn't self destructed.