MyKey

Under WOT i hear this loud air rushing noise i searched the posts and i read all the possibilities, i replaced my BPV a few months ago and i took it out today the the spring feels pretty tight still so i doubt its that and i searched all the intake hoses for leaks by feeling them and i didnt find anything. Did this happen to anyone before and what did u have to fix? what is most commin hose to crack?

[ej257]

you wouldn't believe how many people post and have absolutely no idea that the turbo makes an air rushing noise...so this has to be asked.

RKA

well, not exactly. The problem with bad BPV is usually a tear in the diaphragm. What I usually do is compress the spring by pushing the piston, then I place my thumb over the vacuum nipple and release the piston. The piston will move a bit, which is fine. Then, if I release the nipple and the piston moves complete back to it's original position, the diaphragm is fine, but if the piston does not move at all when I release my finger from the nipple, there is a leak in the diaphragm.

That said, it's hard to hear air rushing when there is a leak in the BPV...it's usually a very different sound. I would begin checking all your hoses running from the turbo to the intercooler, and from the intercooler to the throttle body.

Blake(w/ 16g)

air rushing? isnt a turbo supposed to make sound? ANGRYALEX please post here LOL

MyKey

Its not the turbo spooling up i know what that sounds like it sounds like and over inflated tire being stabbed