2007 6.0 Turbo squealing! HELP please!!

[Outlaw 2007]

Hey everyone im new to this site so dont get pissed if I put this in the wrong place. I have a 2007 f250 6.0. I just bought the truck from a buddy and he had just recently done an egr delete and put a powermax turbo on it. After i got it every now and then you could hear a faint squealing noise. Now three weeks later it has gotten much worse. It comes directly from the turbo area, and if its making the noise at idle and you move the turbo around slightlty by pushing/pulling on the intake or outlet of the turbo the noise changes pitch. The rubber boot in between the turbo and intercooler tube was cracked so i replaced that, but it still makes the same noise. I also pulled off the intake an inspected it for cracks and all is good. If anyone has an idea of what this could be i would really appreciate the help. Here is a link to a youtube video of my truck. Thank you all in advance.

6.0 powerstroke turbo squealing HELP!! - YouTube

6.0 powerstroke turbo squealing HELP!! - YouTube

[jimmyv13]

I just did an egr delete and I have a similar sound. What did you do to fix it?

[Outlaw 2007]

I havn't fixed it yet but I'm quite sure its a cracked Y pipe becasue of the egr delete.

[jimmyv13]

Mine is LOUD. I don't think I can drive it very much like this, it drowns the engine and exhaust.

[07OUTLAW]

First, clean that truck man


You should NOT be able to move the turbo around AT ALL. That would be the first thing I'd be looking at.

I can't really hear anything out of the ordinary in the vid. But a cracked uppipe or leasking gasket is always a possibility

[Outlaw 2007]

as time went on the noise got quieter becasue I think the crack in the flex section of the Y pipe has gotten worse so it isnt making such as high if a frequency noise anymore. Try looking from under your truck up at the Y pipe. Mine hs soot on the flex part.

[jimmyv13]

I think mine got a little quieter as the truck warmed up, still loud though. I can't get at it as raining and the truck doesn't fit in the garage.

[jimmyv13]

Mine is definitely a leak somewhere. I drove it today and the noise stopped for a minute on two ocassions. My understanding with this issue is a marmon clamp and NOT the flex because the noise comes and goes. Is that right or do I have it backwards?

Thanks.

[Outlaw 2007]

I really dont know. Mine comes and goes, but im just assuming its the flex piece because of the soot build up on it

[Rotbody]

When the truck is cold crawl under it and have a buddy fire it up, place your hand BY the up pipes with your hand back and forth. going to the turbo. Do you fee air hitting your hand.

If so you have a cracked up pipe and most likely need a new up pipe to put in. You can also get a cheapy auto stethescope from vatozone that will help you pinpoint the whistle even more. Cheap but effective.

If it is the up pipe get ready to pull the turbo out again. Some dont like to be moved that much. Mine on my 06 broke a month after doing the EGR delete and my buddies went a year before he needed one.

My 06 started a variable intermittent whistle than slowly got to full whislte after start up. Mileage went to 10 MPG's also. I wouldnt reccomend driving it like that for a long time. Its okay to drive to a shop but dont go crazy with it.

That noise sounds just like mine and my buddies did. Use your hand with the truck cold from underneath. You have about a 30 second window to have your hand by the pipes before it starts getting hot. Then use the stethescope from the topside while running to pinpoint where its leaking