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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Can you help me find this Squeak?



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      06-26-2016, 09:20 PM   #1
BlindWolf187
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Unhappy Can you help me find this Squeak?

Hey guys,
I have a problem that cropped up within a week of purchasing my vehicle (about a month ago).
It is a squeaking sound that comes from the front of the vehicle (it may be coming from both sides, but it is definitely worse on the drivers side).
The best I can describe it is a "squirting" sound. Sort of a "fshht fshht" sound.
It started going over speedbumps, but now it happens on any bump whatsoever. If I'm driving on a rough road I hear a continuous "fshht fshht fshht fshht". And it's driving me CRAZY

I thought at first it was the sway bar bushings. To check, I pulled them out and gave them a thick coating of aerosol based dry graphite lubricant. Nothing.

I have found a few other threads discussing squeaking suspension, but nothing seems to match what I am experiencing. From what I have read of other's experiences, it sounds like it could be the sway bar endlinks, the lower control arm bushing, or the shocks themselves. I think the lower control arm bushings are oil filled, and I don't see any sign of a leak from them...

Have any of you had similar experiences? Or do you have any suggestions?

I will post a video with the noise tonight when the roads are quiet and empty.

EDIT:
I have finally taken a video of the sound and isolated a 10 second clip that includes me hitting a bump with the phone outside the car, and then hitting a bump with the phone inside the car. The phone mic doesn't pick up the sound as well as it can be heard by the ear...
[u2b]https://www.youtube.com/watch?v=0N0VimO4x28&feature=youtu.be[/u2b]

EDIT 2: I'm an idiot and can't figure out how to get the video to display right. I'll tackle this when I get back home. Here's the regular youtube link:


EDIT 3: Why does posting the regular link post the video properly and the "[u2b]" brackets don't do anything? I don't understand how the world works...
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Last edited by BlindWolf187; 06-29-2016 at 10:58 PM.. Reason: Add video
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      06-26-2016, 10:24 PM   #2
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Lol sounds like you got a baby squirrel trapped in the wheel arch, sorry dude
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      06-27-2016, 10:12 AM   #3
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Quote:
Originally Posted by BlindWolf187 View Post
Hey guys,
I have a problem that cropped up within a week of purchasing my vehicle (about a month ago).
It is a squeaking sound that comes from the front of the vehicle (it may be coming from both sides, but it is definitely worse on the drivers side).
The best I can describe it is a "squirting" sound. Sort of a "fshht fshht" sound.
It started going over speedbumps, but now it happens on any bump whatsoever. If I'm driving on a rough road I hear a continuous "fshht fshht fshht fshht". And it's driving me CRAZY

I thought at first it was the sway bar bushings. To check, I pulled them out and gave them a thick coating of aerosol based dry graphite lubricant. Nothing.

I have found a few other threads discussing squeaking suspension, but nothing seems to match what I am experiencing. From what I have read of other's experiences, it sounds like it could be the sway bar endlinks, the lower control arm bushing, or the shocks themselves. I think the lower control arm bushings are oil filled, and I don't see any sign of a leak from them...

Have any of you had similar experiences? Or do you have any suggestions?

I will post a video with the noise tonight when the roads are quiet and empty.
I have kinda the same issue, and im positive its the bushings holding the sway bars. What aerosol based dry graphite lubricant did you use?
And do you also have the squeaking in wet conditions? I don't
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      06-27-2016, 11:41 AM   #4
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Ok, last night I watched game of thrones and fell immediately asleep. I'll get a video of it tonight.

Quote:
Originally Posted by anielsen71 View Post
I have kinda the same issue, and im positive its the bushings holding the sway bars. What aerosol based dry graphite lubricant did you use?
And do you also have the squeaking in wet conditions? I don't
I do have the problem in wet conditions, although I have not driven it in heavy rain yet. Here is product I used:
https://www.napaonline.com/napa/en/p/CRC03094/
I am fairly certain that the amount of graphite I applied should have silenced the problem at least temporarily if that was the cause. I recommend you try lubing your up before buying new bushings. They are easy to get to.
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      06-27-2016, 04:08 PM   #5
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Sounds like blown strut maybe.

You can disconnect the end links and drive carefully over bumps to see if the noise goes away. If it does, then its probably the sway bar bushings. If not, I'd consider the strut as an issue.
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      06-29-2016, 08:38 PM   #6
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Quote:
Originally Posted by matteblue3er View Post
Sounds like blown strut maybe.

You can disconnect the end links and drive carefully over bumps to see if the noise goes away. If it does, then its probably the sway bar bushings. If not, I'd consider the strut as an issue.
I may try disconnecting the endlinks this weekend after I poke around the struts and rule out some bushings in that neighborhood - thanks for the idea!

I have posted a video of the sounds in the original post too...
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