Whistling noise revisited, with VIDEO!

[kk]

As I'm experiencing the infamous "high pitched" whistling sound from the engine bay, I did some searching on the forums and came up with a flury of different diagnostics, of course the dealer is no help either as they claimed to have failed to reproduce the problem

To get a proper (or as proper as possible over the forums) diagnostics, I've taken a video with sound of the problem.

Please take a look and let me know if you're experiencing the same problem, and if so what the solution might be.

Thanks!

The video can be found here :

http://rapidshare.de/files/18789108/car_squeak.mpg.html

[deafboy]

couldnt have just put it on youtube or putfile or something...I had to wait... :(

ha.

CLEAN YOUR ENGINE!!!!

I dont think I have ever seen an engine that dirty that is that new.

That is ****ed up...I have never heard anything that annoying. Sorry I cant help you out there...but seriously....go clean!

[IanM325]

... Opened link... Recieved a nice popup greating... closed link. *Scans computer for viruses*

[deafboy]

^

haha, yeah i noticed that too. I have hella protection though so.

Sounds though like something isnt getting proper lubrication, I just dont know what.

[SlickShift]

Upload the file to Putfile or something so we can actually listen to it. It's already been discussed...the sound comes from the air deflecting off the throttle body when it is slightly open.

The only reason you hear it more with an aftermarket intake is because there is less sound insulation.

[kk]

sorry here's the putfile link :

http://media.putfile.com/car_squeakmpg

[CroBmw]

i like it :clap:
imagine you are driving by cute cheeks and your car is whistleing :thumbup:

[deafboy]

^

it would scare them....

[BoLaS]

Yep thats the damn whistle! ... i hate that crap!
but dont worry, it's gonna get worse, mine whistles in about 4 or 5 different pitches now from the 2-3k rpm, it goes away after about 10 minutes of driving though, im taking it to the dealer this weekend to replace the crankcase ventilation hose that is in the intake manifold of the motor...ill let u know if it fixes it, it driving me nuts too, i really cant stand it anymore.... anyone else fixed this yet>????????????????????????

[Nay330Ci]

I thought this thread was about whistle tips..

woo woo

[Albo]

Any problems with your pulleys? I had a similar noise when my alternator pulley was installed incorreclty by some jacka$$. check to see if any of them are croooked and rubbing on something. I don't know for sure if that will be your problem, but just relaying my own past experience.....good luck!

[IanM325]

I thought this thread was about whistle tips..

woo woo

HAHAHAHHAHA! :lmao: "It's only in the monin"

Well my car has made that sound yet I hope it doesn't start :eeps:

[darkmanlfe]

wow it actually whisple... dont know what that is man.

[kk]

Yep thats the damn whistle! ... i hate that crap!
but dont worry, it's gonna get worse, mine whistles in about 4 or 5 different pitches now from the 2-3k rpm, it goes away after about 10 minutes of driving though, im taking it to the dealer this weekend to replace the crankcase ventilation hose that is in the intake manifold of the motor...ill let u know if it fixes it, it driving me nuts too, i really cant stand it anymore.... anyone else fixed this yet>????????????????????????

Is there a TSB for this issue?

Anyways please keep me updated on your visit to the dealer.

Thanks

[SlickShift]

I take back what I had originally posted. My whistle isn't even 1/2 as loud and I have an aftermarket intake. I would definitely go to the dealership and get it checked out.

[motoxr]

check the intake boot just before the throttle body and there is a hose that goes back to the crankcase valve. the flexible accordian style connection is notorius for dry rot and will cause an bad sucking/whistling noise at a partial throttle setting under load especially. everyone should check theirs as it is letting in unfiltered air. not a very difficult install, part is only 12 dollars.

[Custom3]

^hey thats you


check out this thread....some problem with a possible resolution...
http://forum.e46fanatics.com/showthread.php?t=360230

[felner]

Guys,

I have the same whistling problem in my 318i. I already spent about $600 replacing parts and it still whistles. What I found occasionally, was if I drop water on one of those rubber straps in the alternator it stops immediately whistling. Can you believe this? The mechanics keep changing parts, don't know what to do. It's driving me crazy:dunno:

[Asmodeus]

I have the same noise but under load and when I am in gear. If I go in neutral, the GruppeM downs the whistle.

I'll change the part in hopes that it will solve the issue.

[kk]

I've FINALLY got it fixed at the dealership. At first I thought it was the oil seperater, but it turned out to be a faulty alternater.

Cost me $1200 for a new alternater with the labour, but at least its fixed....

[Hollywood619]

That's great news. Now spend 2 dollars more and clean your motor! :rofl:

[bimmaman///]

my humming/whidtling noise is noticable while driving over 1.6k rpms...\
was it the same for you guys?
thanks.