EGR delete - I now have loud hiss

[Stroked06SD]

Sounds like my motor is using an air compressor to dust itself off.

I'm thinking I have an exhaust leak. Since this is my first diesel/ turbo I'm not sure if an exhaust leak always sounds like the leaks I've had on my old small blocks. It seriously sounds like I popped a tire and the air is hissing out. The hissing also doesn't start immediately on start up. After a few seconds of running it starts and the sound gets louder with higher revolutions. At first I thought I had a massive vacuum leak but the engine runs fine and is not throwing any codes. Does a leak in the Y-pipe off the rear of the turbo sound like an air compressor leak?

[diablos30]

sounds like an exhaust leak

[80RTR]

Yep, sounds like your turbo is leaking where it meets the up-pipes. I've had this happen to mine when I did my EGR delete. It helps to leave the up-pipes and turbo mounts loose when you line up the turbo.

[Stroked06SD]

That's what I figgered

Well, back under to loosen things up. Crap

[80RTR]

Make sure it's mated up perfectly before and after you put the v-band clamp on.

[Stroked06SD]

Will do. What a pain.

[PGreenSVT]

Originally Posted by Stroked06SD

Will do. What a pain.

Look at the bright side. It gets easier and faster every time you do it.

[toystuff]

Does your truck run better with egr delete?

[Heathrm]

I had the same problem when I did mine. I ended up haveing to replace the y-pipe that comes off the turbo to the driver side exhaust manifold. The flex portion of it had a leak. Replaced it and running better than ever. Hope this helps.

[scparrish]

had the same problem as the OP I finally got hacked off and tightened the $h!t out of it... it broke and I replace the band loosened everything up snugged down the clamp tightened everything up and bam fixed unfortunately I learned the hard way