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  #21  
Old 08-14-2006, 06:28 PM
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[QUOTE=illuminum]This problems has been plaguing me for years. The dealer tells me he sees it "all the time" and claims it's normal for most 6 cyl bimmers. I'm going to my garage to check it out right now...

Edit:

I checked it out and couldn't find any cracks where you had mentioned. This noise is driving me I-N-S-A-N-E, and what's worse is the shop foreman at my local dealer claims it's normal for most all 3.0i's. If it's normal, then it's a desing flaw. These cars shouldn't make this noise. Does anyone have any other info on this issue? I'm really losing my patience and am about to take it to a independent shop to take the air intake piece by piece to see what the issue is.

P.S. - The dealer claims it's turbulence in the air box or the throttle body. Anyone hear of this before?

I just snapped these photos for better reference.


normal for it to happen maybe....heh I guess the whistling noise i complained about months ago puts me in the club with the rest of you, the whistling noise doesn't neccessarily have to come from that one part, anything of or pertaining to a whistle is most likely coming from the intake system, since both 4.4's and 3.0's get the problem, the noise would most likely come from a different part of the vehicle and searching for cracks may not be the solution to everyone loose clamps, worn hoses, and other defective parts may play a big role . i have a CAI on mine as well, and ill have to start from begining to end to find mine...will take pics.

P.S. - the dealer only cared about you when you spent 50grand + on the car.
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  #22  
Old 09-22-2006, 10:33 AM
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I'm going to add my two bits to this thread, it is a worthy thread, worthy of a bump.

My 2002 3.0 has this noise, and it is unbelievable that it is there.

Get this.

I complained about it last February when I had a check engine light. Of course I got the Gas Cap fault, and the mechanic said the whistle went away with the gas cap getting screwed in properly. Of course that is BS.

I think half the "Technicians" don't know X5s that well, is this possible?

Thanks to this forum I will check the boot as well. It won't be the first underbuilt piece in this engine that has caused problems.
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  #23  
Old 09-22-2006, 10:51 AM
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um, this too is affecting me and my '03 4.6is.
as w/ the rest of u, my dealer tells me it's normal.
i do not believe them. i have an AFE Intake on mine
and still get the whine. any ideas where i can check
for these cracks? i believe my setup is different than
those of u w/ 3.0's.
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  #24  
Old 09-22-2006, 11:14 AM
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Seeing as many people do not have the boot crack as I did we must have 2 different noises going on and since the noise is in several engine sized It has to be a common system. The variable intake unit 11 61 7 544 805 is very high on my list as the possible causes. They run a couple hundred bucks, so it’s an expensive thing to try.

I do know for sure that this unit is responsible for the sucking sound almost every 3.0 makes about 3 seconds after shut down.

Last edited by The Cleaner; 09-22-2006 at 11:35 AM.
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  #25  
Old 09-22-2006, 11:24 AM
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I know that sucking sound, you're mentioning. But that whistle happens just when I'm accelerating from a stop, and it also happens at speed when I have to accelerate from lower RPMs to higher RPMs, it happens momentarily. I'm surprised it hasn't driven my wife to tears. My E90 is so quiet and smooth (now!).
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  #26  
Old 09-22-2006, 11:46 AM
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Quote:
Originally Posted by The Cleaner
Seeing as many people do not have the boot crack as I did we must have 2 different noises going on and since the noise is in several engine sized It has to be a common system. The variable intake unit 11 61 7 544 805 is very high on my list as the possible causes. They run a couple hundred bucks, so itís an expensive thing to try.

I do know for sure that this unit is responsible for the sucking sound almost every 3.0 makes about 3 seconds after shut down.
So, in the 4.4, the throttle related whine, could it also be related to
the variable intake?
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  #27  
Old 09-22-2006, 12:30 PM
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Quote:
Originally Posted by noncom23
So, in the 4.4, the throttle related whine, could it also be related to
the variable intake?
Not the same unit for the V8's, but they have a similar system that has a diaphragm that regulate exhaust gas,
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  #28  
Old 09-22-2006, 01:00 PM
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Quote:
Originally Posted by The Cleaner
Not the same unit for the V8's, but they have a similar system that has a diaphragm that regulate exhaust gas,
Thanks.
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  #29  
Old 09-22-2006, 02:12 PM
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Quote:
Originally Posted by The Cleaner
Not the same unit for the V8's, but they have a similar system that has a diaphragm that regulate exhaust gas,
could u elaborate a little more on this for me, please?
i tried searching RealOEM, but didn't have any luck.
thanks....
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  #30  
Old 09-22-2006, 04:29 PM
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Quote:
Originally Posted by broknlgs24
could u elaborate a little more on this for me, please?
i tried searching RealOEM, but didn't have any luck.
thanks....
Sure, it's a 11 74 1 742 711 Vaccuum control valve and exhaust flap control.

Item number 1. This is ONLY a guess as the possible cause.
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