whistling noise after bov vent?

[Big B]

im having a problem. after my bov vents and you get the hissing sound i get a clear whistle noise that sounds like it coming from the bov. so after the bov vents and remaining pressure will vent really slowly like a long whistle. it also does it when im cruising around at slightly slower speeds. its jus one continous long whistle. is the a bad bov? or a boost leak from somewhere else? because it def seems like it coming from the bov. i have a type s bov. would it help if i went to a type rs?

 

[Zdrummer15]

I'm assuming when you say "vent" you don't mean you actually vented your bov to the atmosphere which would be a bad idea without speed density or a gm maf and translator. Either way, do a boost leak test and see if it's leaking. Just check everywhere while you're at it because if you haven't ever done one, you'll probably find a few leaks.

 

[forcefed86]

Your getting a reed like effect from air sucking past a tiny opening. Pretty common. As stated above if your still using the factory MAF setup don't "vent". Sounds like the valve is leaking.

 

[LandoAWD]

You can DG-mod a TypeS?



Edit: I knew I should have quoted forcefed. This post is now useless.

 

[goodbuds]

what is dg mod?

 

[doayamaha]

Dodge garage mod, it is done by plugging the boost reference port on a bov. Which helps it to hold more boost

 

[stevecbr929]

Your noise is a bad BOV for sure. Check out my video on my profile & see if it's a familiar sound on the video. Replace your BOV, and all will be well again.

 

[Big B]

haha the sound of from the video was that for SURE! i had 2 ebay brand bov and they both crapped out within a couple months. i thought it was my car. i got a jdm bov now. wayyyy more sturdy. all is good thanks alot!