Strange "POP" sound

TrackMastaFlex · Sat, Nov-15-2008, 11:00:31 PM

So I have a noise coming from my M3 that I am stumped on and need some help to diagnois.

I have a single "pop" sound coming from the front right or front left side of the car either when I turn the steering wheel almost full lock to the right or full lock to the left. I also sometimes hear the noise when I'm going over bumps or dips on the road. The noise is predominantly coming from the front right side but the front left side also makes the noise sometimes. I can't really describe the noise, but it sounds like the "pop" sound you hear when you lower your car after it's been jacked up and the spring settles on the perch.

I've inspected my wheel bearing and there is no play in the front wheels.

I've disconnected my sway bar and tried driving, but the "pop" sound is still there without the sway bar connected.

When I jack up the car and turn the steering wheel full lock, there is no noise. The noise only occurs when there's weight on the wheels.

OK, I should clarify. The suspension is modified, I am running Ground Control D/A Coil Overs and Dinan Sway Bar.

I'm pretty much stumped on this one and would appreciate any suggestions. Thanks.

snook · Sat, Nov-15-2008, 11:09:23 PM

it could be the inner control arm bushing has developed play...

control arm, where it connects to the subframe....i had mine develop play...and every time i would roll back out of the garage....click.

vancouverM46 · Sat, Nov-15-2008, 11:20:05 PM

its the sound of virgins losing their viginities when you roll by! lol

but yeah lets us know if snooks right, good piece of info!

snook · Sat, Nov-15-2008, 11:21:15 PM

another thing...stock suspension or aftermarket? camber plates?

BimmerScreamer · Sun, Nov-16-2008, 01:35:28 AM

Quote:

Originally Posted by vancouverM46

its the sound of virgins losing their viginities when you roll by! lol

second that, i hear it all the time

TrackMastaFlex · Sun, Nov-16-2008, 04:30:05 AM

OK, I should clarify. The suspension is modified, I am running Ground Control D/A Coil Overs and Dinan Sway Bar.

lucky_doggg7 · Sun, Nov-16-2008, 06:39:24 PM

Check the coil spring to make sure it is seated in the perch correctly. Good luck.

ire · Thu, Aug-25-2011, 09:14:58 PM

Did you resolve this issue? I'm having something similar and my indy tech can't seem to locate it. Everything is tight in the front suspension. Everything is stock, no suspension upgrades.

Sat, Nov-15-2008, 11:00:31 PM	#1
TrackMastaFlex Registered User Join Date: Sep 2008 Posts: 107 Reputation: 0 Location: North Jersey	Strange "POP" sound So I have a noise coming from my M3 that I am stumped on and need some help to diagnois. I have a single "pop" sound coming from the front right or front left side of the car either when I turn the steering wheel almost full lock to the right or full lock to the left. I also sometimes hear the noise when I'm going over bumps or dips on the road. The noise is predominantly coming from the front right side but the front left side also makes the noise sometimes. I can't really describe the noise, but it sounds like the "pop" sound you hear when you lower your car after it's been jacked up and the spring settles on the perch. I've inspected my wheel bearing and there is no play in the front wheels. I've disconnected my sway bar and tried driving, but the "pop" sound is still there without the sway bar connected. When I jack up the car and turn the steering wheel full lock, there is no noise. The noise only occurs when there's weight on the wheels. OK, I should clarify. The suspension is modified, I am running Ground Control D/A Coil Overs and Dinan Sway Bar. I'm pretty much stumped on this one and would appreciate any suggestions. Thanks. __________________ 2006 M3 ZCP NASA NorthEast Region Time Trial TTB Class Last edited by TrackMastaFlex; Sun, Nov-16-2008 at 04:30:17 AM.

Sat, Nov-15-2008, 11:09:23 PM	#2
snook Registered User Join Date: Dec 2003 Posts: 4,081 Reputation: 0	it could be the inner control arm bushing has developed play... control arm, where it connects to the subframe....i had mine develop play...and every time i would roll back out of the garage....click. __________________

Sat, Nov-15-2008, 11:21:15 PM	#4
snook Registered User Join Date: Dec 2003 Posts: 4,081 Reputation: 0	another thing...stock suspension or aftermarket? camber plates? __________________

Sun, Nov-16-2008, 04:30:05 AM	#6
TrackMastaFlex Registered User Join Date: Sep 2008 Posts: 107 Reputation: 0 Location: North Jersey	OK, I should clarify. The suspension is modified, I am running Ground Control D/A Coil Overs and Dinan Sway Bar. __________________ 2006 M3 ZCP NASA NorthEast Region Time Trial TTB Class

Thu, Aug-25-2011, 09:14:58 PM	#8
ire Why so serious? Join Date: Sep 2010 Posts: 121 In the garage: '04 BMW M3 Reputation: 0 Location: Los Angeles	Re: Strange "POP" sound Did you resolve this issue? I'm having something similar and my indy tech can't seem to locate it. Everything is tight in the front suspension. Everything is stock, no suspension upgrades.

Sat, Nov-15-2008, 11:20:05 PM	#3
vancouverM46 Registered User Join Date: Aug 2008 Posts: 476 Reputation: 0	its the sound of virgins losing their viginities when you roll by! lol but yeah lets us know if snooks right, good piece of info!

Sun, Nov-16-2008, 06:39:24 PM	#7
lucky_doggg7 lucky_doggg7 Join Date: Apr 2008 Posts: 2,122 Reputation: 11 Location: Lake Forest	Check the coil spring to make sure it is seated in the perch correctly. Good luck.

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