Strange Flutter Sound

[ColbyMP]

About a week ago, I posted on this forum about a flutter whistle sound that my 2010 LGT (159k miles, some unknown tune, and some mods) was making between certain speeds. I got a lot of possibilities. So I did some more research and found that a bad TMIC to TB hose sound is what my car sounds like. I checked and sure enough, the hose was bad. I ordered an AVO TB hose, installed it, and the sound is STILL HERE...UGH! At this point, still not sure what the issue is. Maybe a bad BPV? Boost leak? I tried my best to capture a sound clip of it so attached is the clip. Not sure if you will be able to hear it or not. It is the whistle flutter sound right before shifting: http:// https://streamable.com/un7zax

Please help. Thanks.

The following link is a different person’s video of their 2011 WRX doing the same thing. Mine sounds just like this: https://streamable.com/3wkt7

 

Decided to post a new thread because I think my original thread got sent to the bottom of the forum.

Edited May 7, 2020 by ColbyMP

[Fabsx]

Check tmic, they’re known to separate and leak.

Check charge pipe flex section for rips.

Verify you have o ring at charge pipe to turbo connection.

Verify turbo inlet from intake to turbo is on and has o ring.

 

Last thing if all those fail.. start spraying carb/brake cleaner around all connections and see if you noticed a bump in idle.

 

 

Sent from my iPhone using Tapatalk

[ColbyMP]

Check tmic, they’re known to separate and leak.

Check charge pipe flex section for rips.

Verify you have o ring at charge pipe to turbo connection.

Verify turbo inlet from intake to turbo is on and has o ring.

 

Last thing if all those fail.. start spraying carb/brake cleaner around all connections and see if you noticed a bump in idle.

 

I will check all that out. Thanks!