Ok this is an odd question... I have noticed when I am in the left lane cruising lets say 70mph foot lightly on the gas to maintain speed I can hear this sound bounce off the concrete barrier. It sounds like a whistle its not that loud. but its noticeable when the window is down. Now I am pretty sure its not the TCASE whine.. I only hear it on the highway. My turbo doesn't appear to be going. I checked for shaft play and seemed to be ok.

I am on the stock turbo, with HKS intake, cams, tune, Works dp/exhaust few other supporting mods. Just curious if this is the tale of things to come. When I heard a similar noise to this is why my turbos went in my S4...

Thoughts?

 

boost leak possibly? Have you done a boost leak test lately?


Athanasios

 

Yah did a boost leak test. Help pressure fine. I don't hear it when i boost. Then again can't hear much other than WOOOOOOOOOOOOOOOOOOSH...

 

I have that noise too. Been bugging me lately, still have not found out what it is.

 

Throttle body whistle? You have modified TB?

 

Maybe this

http://www.youtube.com/watch?v=n79jSzKA0L8


But seriously, it may be the TB. Post an audio file of it.

 

Thats always a classic....^ It's likely your transfercase when your title of your thread is whistle and whine-mine did the same and blew up on the interstate.


Dude said, "thats only in the mo'nin', you suppose to wake up and eat breakfest".

 

I do have an upgraded TB. Forgot to add that. I have a works TB. Didn't know that made the whistle. Can't see the video from work. As I made this thread just kept thinking the Whistle tips go woo woooooo

 

Checkout MilSpec's threads on here. He has a lot of info on throttle bodies and the whine.

On a side note, you should be glad it's not the woo wooo!

 

"u pose'd to be up in da mownin', its like uh larm clock, woooooo wooooooooooooooooo

 

I have the WORKS throttle body too. There was a very, very slight gap between the throttle plate and body. Mine never whistled, but I still did the "Mil-Spec" mod and put some dry moly lube around the gap. Improved driveability for me but maybe for you it will stop the whistle if it's your TB anyway..

Here's Liqquids thread he made https://www.evolutionm.net/forums/ev...e-sealing.html

 

I miss this video, you made my day

 

Sounds like the transfer case

 

THanks Boosted... I am replacing my UICP just waiting for it to be finished at the powder coater.. I will look at the TB and probably do the mod at that point. Thanks alot for posting this.

And you think this why?

 

Bad wheel bearing?