when my turbo is engaged there is a really high pitched loud air leak from soewhere. no im npt stupid i know turbos make noise but this is even louder then my truck or my speakers all the way up. i mean its LOUD. is this leak from like a cracked hose or my actual turbo? suggestions or things to look for please. modified cummins with stock turbo. whats leaking air?

 

yeah check your boost boots make sure you clamps are tight and there are no holes in them if you dont find any holes you might need to hook shop air and air it up to see

oh and

 

boost boots where? im no diesel genious just so you know. learnin.

 

no problem, they connect your pipes together you will have pipe then a rubber boot then pipe again check them out and see if the rubber has a hole or the clamp is loose check both sides there under your truck next to the wheel wells

 

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oh thanks coyropin bye the way

 

Scan through this thread and see if it helps. https://www.dieselbombers.com/cummin...tructions.html