IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Suspension clunk?

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Old 06-23-06, 10:39 AM
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pocky
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Default Suspension clunk?

I tried searching a bit on this clunk that I'm experiencing and turned up nothing, other then sunroof creeks.

Anyway, I noticed that the front suspension clunks when you drive over rough bumps on the road, or imperfections, dips, etc. Anytime the suspension is jolted suddenly.

Now, you will NEVER hear this with the windows closed, even if the music is off. But once I roll down the windows, oh lordy! I can hear that baby go clunk! I still have stock suspension, it's been doing it a while, just didn't bother me much until I drove with the windows down for a whole day.

Curious if anyone experienced this.
Old 06-23-06, 11:03 AM
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mwaull
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man these are the little things that just get on your nerves! Yeah i would take it to the dealership or something . . . i couldnt stand that.
Old 06-23-06, 11:28 AM
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teracon
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I have the similar issue. The only difference is when I apply pressure to the brakes. Nearly two months ago, I had the front pads replaced due to excessive squeaking (8500 mi). Afterwards, the squeaking went away only to return. Nearly two weeks ago, I noticed that when I applied moderate pressure to the brakes, they will grind and make a "thud" or "clunk" sound.

I am taking it in on Monday to find out what's wrong.
Old 06-23-06, 11:53 AM
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Payam
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Hmmm, I don't think I've heard a clunk come from the suspension and my windows are always down.... How loud is it?
Old 06-23-06, 12:02 PM
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HoustonIS
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I have the same problem, started noticing it about 4 wks after purchase. Seems to come from right rear suspension. Makes a "clack" sound whenever it drops after I've hit a bump. I'll bring it up during my 5k service.
Old 06-23-06, 12:28 PM
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pocky
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It's prettty darn loud.

HoustonIS, Yeah it sounds just like that. The heard if on another CL members' car while we were slowing down for a red light, since then he got it fixed and the dealer said it was the parking brake

But I was under the impression it was the fronts, at least from what I can hear

Guess it's the dealer I go.
Old 06-23-06, 12:57 PM
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Pittdawg
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Uh oh...I haven't noticed this yet on my IS and I hope I don't, on my last vehicle, a 2002 Dodge Dakota, a very similar clunk to the one you described resulted in a recall of the ball joints, apparently they were some cheapo ball joints and the self-contained lube in them would wear out extremely prematurely, causing a degradation of the ball joint and the dreaded "suspension clunk".
Old 06-30-06, 12:12 PM
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JohnnySpag
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I am experiencing a similar issue. To me, it seems like it is coming from the left front. Has anyone brought their car back to the dealer to have it checked? I am going on Wednesday for 5K oil change will bring it up then.
Old 06-30-06, 06:37 PM
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HoustonIS
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Whenever you guys get back from the dealership, please post what you know. Its gonna be another 3 months until my 5k, so if it's something serious, I may take it in before then.
Old 07-07-06, 08:51 AM
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JohnnySpag
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Has anyone found out what this noise is? I brought my car to Lexus and they say they cant duplicate the noise.
Old 07-07-06, 09:12 AM
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I haven't had the time to take it to the dealer yet. Busy as of late.

I will definately need to find a piece of road that can I duplicate the sound near the dealer. I can do it down the street from my house, but I doubt I can drag the tech all the way home

Probably take it in next week when I change my oil, gotta dump the dirty factory oil.
Old 07-07-06, 10:05 AM
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imaputz
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how many miles did rack up so far pock?
Old 07-07-06, 10:30 AM
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pocky
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Originally Posted by imaputz
how many miles did rack up so far pock?
Only 1400. But it's alot for me since I rarely ever put this many miles on cars period. People who know me personally know...I don't drive.

Well, I realized next weekend is Aerotect meet! Sooo...I probably won't be taking the car in. Gonna push it another week. Rack up more miles before the oil change,
Old 07-07-06, 11:10 AM
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ULTiMaX99
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dang only 1400??? we picked up our cars on the same day and i have nearly 2400 on mine already!

oh n oil change so soon???
Old 07-07-06, 04:24 PM
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JohnnySpag
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Picked up my car this evening. Unable to dupicate noise. Went for a ride with technician. He did hear it once, but wasnt sure what it could be. Any one have any insight on what this noise may be?


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