6.0 turbo problem

[sobrien1130]

I Posted a problem with my 06 6.0 and had posted a few days ago. My truck is making a loud squeal when it builds up boost pressure and its not the turbo spooling up. A few people told me to check the I/C boots and there fine. Someone also said EGR maybe. it was replaced about a week ago. Its coming right from the turbo or around it and i cant figure it out, If anyone has heard of this kind of problem or knows what it might be i would appreciate any help.

[dhanna6powerstroke]

Originally Posted by sobrien1130

I Posted a problem with my 06 6.0 and had posted a few days ago. My truck is making a loud squeal when it builds up boost pressure and its not the turbo spooling up. A few people told me to check the I/C boots and there fine. Someone also said EGR maybe. it was replaced about a week ago. Its coming right from the turbo or around it and i cant figure it out, If anyone has heard of this kind of problem or knows what it might be i would appreciate any help.

Can you get and post a video of it? Does it do it only when engine is under a load or will it do it in park when RPM's are raised?

[sobrien1130]

I cant get a video but it doesnt do it when its in park and im just reving it. It doesnt start until i start to build up boost and it gets louder as i build it up more. I had someone put there foot on the break and rev it up, like trying to do a burn out while i was under the hood and the noise came straight from where the turbo is and it was loud as hell.

[dhanna6powerstroke]

Originally Posted by sobrien1130

I cant get a video but it doesnt do it when its in park and im just reving it. It doesnt start until i start to build up boost and it gets louder as i build it up more. I had someone put there foot on the break and rev it up, like trying to do a burn out while i was under the hood and the noise came straight from where the turbo is and it was loud as hell.

Look behind the turbo kind of on the drivers side and see if your firewall has black soot all over it. You might be able to see it from under your truck too. Just look up at the firewall and see of it is black.

[sobrien1130]

I checked the fire wll it was clean....You think it could be a bad turbo cuz im not loseing boost or you think something is just lose?

[quequeg37]

what is the significance of the black soot on the firewall behind the turbo? my whole driver's side firewall is covered w/ soot and exhaust seeps into the cab at cold start. it also rattles so loud and runs horrible and has no power until it reaches operating temp. just wondering about the black soot.

[dhanna6powerstroke]

Originally Posted by sobrien1130

I checked the fire wll it was clean....You think it could be a bad turbo cuz im not loseing boost or you think something is just lose?

Don't think it is a bad turbo. Not sure without being able to hear it.

Originally Posted by quequeg37

what is the significance of the black soot on the firewall behind the turbo? my whole driver's side firewall is covered w/ soot and exhaust seeps into the cab at cold start. it also rattles so loud and runs horrible and has no power until it reaches operating temp. just wondering about the black soot.

Flex joint on the up pipe notorious for breaking on the 6.0, especially if the turbos have been replaced. If it gets hit or moved around a bunch when swapping the turbos, it can crack.

[sobrien1130]

Thanks for all the help. Im going to take a look at it tomoro. How hard is it to get to the up pipe?

[03f250stroke]

on the Y up you would normally see soot on the firewall. you boots may not be riips but check the clamps on the boots, if they are loose they can leak boost and cause that sound.

the up pipe is on the passenger side that connects to the turbo. the Y pipe comes off the turbo and is more on the driver side.

[dhanna6powerstroke]

Originally Posted by 03f250stroke

on the Y up you would normally see soot on the firewall. you boots may not be riips but check the clamps on the boots, if they are loose they can leak boost and cause that sound.

the up pipe is on the passenger side that connects to the turbo. the Y pipe comes off the turbo and is more on the driver side.

Thanks for the correction. I meant to say "Y" pipe.