Sounds like a siren????

[CStraface]

I was driving today on the freeway doin about 80. When I would punch it (WOT) to about 90 or 100 and then let off the throttle, I heard a noise that sounded like a siren. I sware. The noise would die off with the boost. Had to be something with the intake or turbo. BDDL was on Crazy Larry and TST was on 0/4. Just messin around with the settings, but this was the setting when the siren noise started happening.





Anyone let me know what you think. Thanks, Cstrafa.

 

[MRFost]

I'm not going to suggest the cause -- but I wanted to ask if a siren sound when you're between 90 and 100 is un-nerving?

 

[DerekW]

I don't have a solution to you siren noise but I do have a suggest to many of the things in life. Theres a saying "hurry up every chance you get" don't feel guilty I do it where I know I can get away with with *knock on wood*

 

[BradyWilliams]

Check the blast hoses (air to air hoses etc. ) If they blow off they will make a siren noise. Also if they are all on good then take the turbo intake pipe off and look at the turbo for rubbing or shaft movement, in and out also up and down. In and out should be not much. Up and down you will have some movement but it should never touch the housing. Also if a hose or a fitting comes lose on the engine or turbo you will have the same sound. Thanks