sanadrustom

Hey Guys,

about two weeks ago i replaced my turbo with another stock K03, reason for doing so was the waste-gate flap not doing what it should.

that being said, the work went flawlessly and its spooling now. my issue is now that i have boost i hear a boost leak when under pressure (hissing sound) and i lose boost instantly. i did a boost leak test and i found the hiss...its coming from the back of the block in the general area of where the coolant flange is. my question is what can that be? i tired but couldn't find it (visually), keep in mind i didn't take anything apart from that area and haven't dug too deep into it, just curious to see if there is any info on what could be leaking in that general area.

thank you in advance

cheers