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-   -   Annoying Suspension Chirp (http://forum.e46fanatics.com/showthread.php?t=582197)

alvocado 06-09-2008 07:21 PM

Annoying Suspension Chirp
 
I've seen a few posts regarding this but no definitive resolution. I'm getting a chirping sound from my passenger front suspension when I drive over sharp bumps. A big bump doesn't trigger it but expansion joints, etc. do. It's pretty noticeable with the windows or top down and is really annoying. I have newer Meyle arms and bushings and replaced the sway bar links with Febi replacements about 2 mos. ago. I didn't hear the noise until about a month after replacing the links. Has anyone experienced this and been able to pinpoint the source? I don't have any loseness or suspension performance loss, just the annoying noise.

grzes12n 06-09-2008 08:10 PM

I have it too, I just replaced my meyle control arms with bushings and my sway links are on the way maybe it is the tie rods or the strut mount? :cry:

JK1150 06-09-2008 08:30 PM

my friend's dodge has this so i'd be interested in the resolution as well...

alvocado 06-11-2008 11:01 AM

Has anyone experienced this with Meyle sway bar links? I wish I would have tried them vs. the Febi/Bilstein. It seems strange that this started within weeks of replacing my worn factory links.

MJRMatt330 06-11-2008 01:06 PM

i hear this sound every so often from the passenger side too... my FCAB's and gang are bad so i was hoping that was the cause... guess not... :cry: somebody help us

dogdaysunrise 06-11-2008 01:07 PM

Same here, rear, passenger side...annoying, but only when window is down and music not cranked up....hahaaaa.....

grzes12n 06-11-2008 08:22 PM

I have it in the front and rear :cry:

alvocado 06-12-2008 02:24 PM

I'm amazed that so many hear it but no one has figured out the cause. I'm pretty certain it's not a serious issue so it's definitely low priority; just a nuisance. I'm tempted to hit my links and sway bar bushings with Dupont teflon spray to see if that makes a difference.

MightyY 06-12-2008 02:58 PM

I jstarted hearing a chirp in the rear passenger side, too. :( Haven't noticed it in a few days, so maybe it was just the hot weather....

alvocado 06-19-2008 09:27 PM

Even the cicadas can't mask the chirp. It's driving me nuts. Anyone solve this? I've asked Ruben at Desert Motorworks to quote the Meyle stabilzer bar links. I might try swaping out the Febi and see if that solves it.

naraM 06-19-2008 09:34 PM

hahha my friends e36 used to get it. He doesnt get it anymore i wonder what he did.

Bimmaniac32 06-19-2008 11:47 PM

its my opinion that this could very well be normal. I occasionally hear it on my ZHP also. Its possible that its just the shock absorber compressing.. the liquid/gas being shot through the holes in the internal plate that dampens the forces.. If you look at a cutaway of a shock you'll know what i mean.

neil1138 06-30-2008 09:50 AM

I have this problem too! Someone told me that it could be the spring pads going bad. Those rubber pads wear down and let the springs rub against the metal mounts causing the squeaking/chirping noise.

ledfut 06-30-2008 12:26 PM

It could be so many things, you really need to get out of the car, move the suspension, and try and track it down.

It could be as simple as greasing the sway bar bushings, or as complicated as replacing your control arms.

dogdaysunrise 07-31-2008 12:55 PM

UPDATE:

I figured mine out, it was the brake pads, they had play.
The clip in the rear had not enough tension and the one in the front :yikes::yikes::yikes: was completely missing.

BMW charged me ~$25 for it....:tsk:a piece of metal that should be no more than $5, but okidoki......:thumbsup:

alvocado 07-31-2008 05:52 PM

Quote:

Originally Posted by dogdaysunrise (Post 8312471)
UPDATE:

I figured mine out, it was the brake pads, they had play.
The clip in the rear had not enough tension and the one in the front :yikes::yikes::yikes: was completely missing.

BMW charged me ~$25 for it....:tsk:a piece of metal that should be no more than $5, but okidoki......:thumbsup:

Interesting. I was at my mechanic a couple of weeks ago for an unrelated issue on my SUV and asked his opinion. He said it's common for the brake pads to make a chirping noise on VW's if they aren't fully secured. I don't know how similar the pad/caliper design is but now that you tracked your problem down to the pads, I'm going to inspect mine.

I'll pick up a couple of clips and replace the fronts and report back afterwards. Thanks for the follow-up information on this.

grzes12n 08-01-2008 09:59 AM

I will check mine but i dont think this is my problem :dunno:

alvocado 08-01-2008 04:46 PM

I haven't bought the clips yet but I noticed that I can easily flex the clip off the caliper on the fronts with my fingers but the backs are super tight; I can't budge them. If the fronts are that lose, it seems reasonable that the caliper would move in the carrier over sharp bumps. I'm picking up the clips tomorrow and will report back.

grzes12n 08-02-2008 10:16 AM

FIXED!!

I bent the clips and put grease on the back of the pads without taking them out. noise is gone! :thumbsup:

alvocado 08-04-2008 05:28 PM

The new clips eliminated 90% of my chirp. When I compared the original clip with the new part, there was about a 1/4 inch difference in the position of the end of the clip that would rest on the top of the caliper. This explains the reduced tension. It may have been an option to bend the clip back but for $30, I put two new clips on. I do still get an occasional chirp very infrequently over really harsh bumps but I'm certain that's from the pads needing some anti-sqeal. It's not a surprise considering how noisy these Axxis pads have been. The dealer gave me (free:)) a can of graphite based lubricant they use on factory pad backing plates to absorb squeal so I'll give that a try and see if the chirp completely disappears.


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