Whistle sound while accelerating

SpacegrayMe90 · 01-10-2015, 11:24 PM

Hi guys,

I have been hearing a whistling sound while accelerateing. This mainly happens in fourth gear under 4k rpm. It almost sound like a wire ground issues.

Any thoughts?

And no I don't have a super charger before you jokers chime in.

1MOREMOD · 01-11-2015, 12:02 AM

Whistle tips on your exhaust. Popular mod.

squartus · 01-11-2015, 02:27 AM

Does it sound like its coming from the rear of the car, drivetrain/differential etc.
Or from engine bay/intake?

Jamaro · 01-11-2015, 02:34 AM

Quote:

Originally Posted by 1MOREMOD

Whistle tips on your exhaust. Popular mod.

They go woo woo.

Gumulri · 01-11-2015, 04:23 PM

check the ps fluid mine went away when I fill up the ps fluid.

SpacegrayMe90 · 01-11-2015, 04:31 PM

The sounds seems to be coming from the engine bay.

Andy_H_E92_M3 · 01-13-2015, 03:35 PM

I've heard the same faint noise since day one... still don't know what it is... <subscribed>

SpacegrayMe90 · 01-16-2015, 02:35 PM

Quote:

Originally Posted by Andy_H_E92_M3

I've heard the same faint noise since day one... still don't know what it is... <subscribed>

I have been researching this my self before I bring in my car to the stealers, and it could be anything from the heat shield being loose to a problem with the differential.

What gear and rpm do you notice it? I mainly notice it in 4th through 6th gear under 4K rpm. It also depends on my throttle position, and if I coast I don't hear it.

SpacegrayMe90 · 01-16-2015, 02:41 PM

Quote:

Originally Posted by Gumulri

check the ps fluid mine went away when I fill up the ps fluid.

I will take a look at this as well.

StealYourFace · 01-19-2015, 06:40 AM

the stock exhaust may have a whistle to it. I have seen several e90s with oem mufflers at the track making a whistle sound at wot going up the esses at the glen

BzsBimmer · 01-19-2015, 08:17 PM

Intake?

KRB_E90 · 01-19-2015, 08:40 PM

Mine does it too... Not sure what it is. Really hear it in 6th between 2k - 4k RPMs

SpacegrayMe90 · 01-20-2015, 08:17 AM

Quote:

Originally Posted by BzsBimmer

Intake?

Could be, not sure.

Quote:

Originally Posted by KRB_E90

Mine does it too... Not sure what it is. Really hear it in 6th between 2k - 4k RPMs

Yup, same here.

nusevad · 01-20-2015, 11:10 AM

I have a faint whistle as well...around 2-4K rpms, I thought it was my actuators because noise started before one of them died, but after getting it fixed theres still a faint whistle...i just assume its normal as the car gets older. How many miles does your M have? im at 36K

BIGW0RM · 01-20-2015, 12:19 PM

My SC does the whistle. Its annoying because it comes and goes at a certain RPM

modkrazy · 01-20-2015, 01:35 PM

Check that undertray crap on the car. Mine was cracked and was creating a wind sail under the car. Not so good at 150MPH coming up to a 90 degree turn.

SpacegrayMe90 · 01-20-2015, 03:11 PM

Quote:

Originally Posted by FifthStreetz

I have a faint whistle as well...around 2-4K rpms, I thought it was my actuators because noise started before one of them died, but after getting it fixed theres still a faint whistle...i just assume its normal as the car gets older. How many miles does your M have? im at 36K

Mine has 41K.

KRB_E90 · 01-20-2015, 11:03 PM

I'm at 33K (08)

KRB_E90 · 01-20-2015, 11:06 PM

To me it sounds like it's coming from the rear diff area only under load.

gio14 · 01-20-2020, 01:50 PM

I installed an active autowerke filter last week and I'm getting a whistle too, at low rpms 1500-2500. This definitely started right after I installed it. Is this normal? At first I thought it was but now I'm thinking there may be something going on. I made sure that the air filter didn't have any gaps, now I'm thinking it may have moved or maybe it's normal?

obe100 · 07-06-2020, 10:20 PM

Quote:

Originally Posted by gio14

I installed an active autowerke filter last week and I'm getting a whistle too, at low rpms 1500-2500. This definitely started right after I installed it. Is this normal? At first I thought it was but now I'm thinking there may be something going on. I made sure that the air filter didn't have any gaps, now I'm thinking it may have moved or maybe it's normal?

any updates?

gio14 · 07-07-2020, 02:16 AM

Quote:

Originally Posted by obe100

Quote:

Originally Posted by gio14

I installed an active autowerke filter last week and I'm getting a whistle too, at low rpms 1500-2500. This definitely started right after I installed it. Is this normal? At first I thought it was but now I'm thinking there may be something going on. I made sure that the air filter didn't have any gaps, now I'm thinking it may have moved or maybe it's normal?

any updates?

Ended up swapping to AFE Setup. Definitely less whistle. Swapping back to the autowerks one next week and will investigate further.

01-10-2015, 11:24 PM	#1
SpacegrayMe90 First Lieutenant 131 Rep 372 Posts Drives: 2010 e90M3 Join Date: Apr 2012 Location: NYC iTrader: (0)	Whistle sound while accelerating Hi guys, I have been hearing a whistling sound while accelerateing. This mainly happens in fourth gear under 4k rpm. It almost sound like a wire ground issues. Any thoughts? And no I don't have a super charger before you jokers chime in.
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01-11-2015, 12:02 AM	#2
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	Whistle tips on your exhaust. Popular mod. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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01-11-2015, 02:27 AM	#3
squartus Major 314 Rep 1,017 Posts Drives: 2010 E92 M3 6MT Join Date: Apr 2013 Location: Mississippi iTrader: (0) Garage List 2010 E92 BMW M3 [10.00]	Does it sound like its coming from the rear of the car, drivetrain/differential etc. Or from engine bay/intake? __________________ 4.4L LC stroker/ESS VT2-625/Volk te37 sl's/AA exhaust/DSS Carbon Fiber driveshaft/ARH Headers.. etc
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01-11-2015, 04:23 PM	#5
Gumulri Captain 23 Rep 730 Posts Drives: BMW 335i convertible[sold] Join Date: May 2008 Location: La Mirada iTrader: (2) Garage List 2008 335i [0.00]	check the ps fluid mine went away when I fill up the ps fluid. __________________ 08 E90 SSII M3 6MT for track 2015 Lexus RX350 Fsport for wife 2012 Honda Oddessey Touring for kids 2014 toyota Fj cruiser 4x4 for me
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01-11-2015, 04:31 PM	#6
SpacegrayMe90 First Lieutenant 131 Rep 372 Posts Drives: 2010 e90M3 Join Date: Apr 2012 Location: NYC iTrader: (0)	The sounds seems to be coming from the engine bay.
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01-13-2015, 03:35 PM	#7
Andy_H_E92_M3 Second Lieutenant 18 Rep 227 Posts Drives: 2008 E92 ///M3 Join Date: Dec 2011 Location: TX iTrader: (14)	I've heard the same faint noise since day one... still don't know what it is... <subscribed>
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01-19-2015, 06:40 AM	#10
StealYourFace Lieutenant Colonel 260 Rep 1,794 Posts Drives: F30 328i M 6mt, E36 M3 Join Date: Jul 2009 Location: Shakedown Street, Buffalo NY iTrader: (1)	the stock exhaust may have a whistle to it. I have seen several e90s with oem mufflers at the track making a whistle sound at wot going up the esses at the glen __________________
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01-19-2015, 08:17 PM	#11
BzsBimmer Major General 3252 Rep 6,715 Posts Drives: '23 G80 FO M3, M3 & MY Tezzy's Join Date: Mar 2006 Location: Nor. Cal iTrader: (32)	Intake?
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01-19-2015, 08:40 PM	#12
KRB_E90 Private First Class 12 Rep 175 Posts Drives: Yes Join Date: Jun 2009 Location: NJ iTrader: (1)	Mine does it too... Not sure what it is. Really hear it in 6th between 2k - 4k RPMs
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01-20-2015, 11:10 AM	#14
nusevad O! So Sour!! 552 Rep 15,615 Posts Drives: Fast 240z / Slow M3 Join Date: Apr 2007 Location: 'Merica! iTrader: (24) Garage List 1971 Datsun 240z [0.00] 2008 M3 [9.60]	I have a faint whistle as well...around 2-4K rpms, I thought it was my actuators because noise started before one of them died, but after getting it fixed theres still a faint whistle...i just assume its normal as the car gets older. How many miles does your M have? im at 36K __________________
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01-20-2015, 12:19 PM	#15
BIGW0RM You got my money? 3120 Rep 4,640 Posts Drives: Ice Cream Truck Join Date: Jul 2011 Location: ///OC iTrader: (14) Garage List 2022 BMW M3 [9.50]	My SC does the whistle. Its annoying because it comes and goes at a certain RPM __________________ 2022 G80 M3 Competition X / 2020 Range Rover Sport P525 / 2023 Ford Raptor
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01-20-2015, 01:35 PM	#16
modkrazy Lieutenant Colonel 171 Rep 1,536 Posts Drives: m3 Join Date: May 2014 Location: tx iTrader: (1)	Check that undertray crap on the car. Mine was cracked and was creating a wind sail under the car. Not so good at 150MPH coming up to a 90 degree turn.
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01-20-2015, 11:03 PM	#18
KRB_E90 Private First Class 12 Rep 175 Posts Drives: Yes Join Date: Jun 2009 Location: NJ iTrader: (1)	I'm at 33K (08)
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01-20-2015, 11:06 PM	#19
KRB_E90 Private First Class 12 Rep 175 Posts Drives: Yes Join Date: Jun 2009 Location: NJ iTrader: (1)	To me it sounds like it's coming from the rear diff area only under load.
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01-20-2020, 01:50 PM	#20
gio14 Private First Class 70 Rep 135 Posts Drives: z3 Coupe, E93 M3 Join Date: Oct 2019 Location: San Diego, CA iTrader: (0)	I installed an active autowerke filter last week and I'm getting a whistle too, at low rpms 1500-2500. This definitely started right after I installed it. Is this normal? At first I thought it was but now I'm thinking there may be something going on. I made sure that the air filter didn't have any gaps, now I'm thinking it may have moved or maybe it's normal? __________________ "Smiles per Mile"
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