Bad lbz turbo?

tripleturbo

New member
Feb 27, 2013
229
0
0
Baltimore, MD
Hopefully some of you guys can help me out. My turbo is my stock one with 95k miles on it. I have a built trans with max effort tunes. For awhile now whenever I would start my truck, it would make a loud squeal once the veins changed on the turbo. Then when I put it in drive it will squeal. When i touch the gas pedal it will squeal. When I turn the AC on it will squeal. I don't notice it while I'm driving though.

I've changed the alternator, idler and tensioner pulleys and the belt. Stuck my head under the hood and next to the turbo and that's where it sounds like it's coming from. I'm not a turbo expert by any means so would something bad in the turbo cause this Sound? Thanks for any help.
 

MD_Max

Need More LLY's
May 2, 2014
85
1
8
If it is a bad up pipe gasket you should be able to see where the up pipe is getting black from the soot. Just get it twinned like you wanted to and it will solve it if it is a bad turbo lol,:woott:
 

tripleturbo

New member
Feb 27, 2013
229
0
0
Baltimore, MD
If it is a bad up pipe gasket you should be able to see where the up pipe is getting black from the soot. Just get it twinned like you wanted to and it will solve it if it is a bad turbo lol,:woott:

Yeah I hear you lol if it is a bad turbo, which I hope it's not, I'm thinking marks GT3794va.