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Weird sound when going over speed bumps

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Old May 20, 2007 | 12:58 PM
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Default Weird sound when going over speed bumps

When I go over bumps I hear like a clicking sound or something. It like metal hitting metal. Is that normal and does anyone else have this problem?
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Old May 20, 2007 | 10:16 PM
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I hear it too... for me its inside the vehicle and it sounds like its coming from the roof. not sure if you have the same problem.
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Old May 20, 2007 | 10:34 PM
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Yep.. I get it on pot holes every now & then.... I heard it when I test drove an IS when I was purchasing.... I just figured it is normal
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Old May 20, 2007 | 10:52 PM
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I am getting this fixed over this weekend. I had a tech ride with me said its not really that common but he has had this occur in other cars. Said it comes from clips that hold the dash in the front those bang against the window on bumps. I will write up what was actually done when i get my car back.

Last edited by dan206; May 20, 2007 at 11:28 PM.
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Old May 20, 2007 | 11:23 PM
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Thank You, I plan on getting it fixed when I go in for my 5000 Oil Change, along with the TSB for the front brake pads. It'd be helpful to know what to tell them
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Old May 20, 2007 | 11:29 PM
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what is the TSB for the brakes? I didn't hear of anything being called out on that
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Old May 20, 2007 | 11:37 PM
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My car used to be like that. Not anymore.
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Old May 21, 2007 | 12:41 AM
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TSB for brakes
Attached Files
File Type: pdf
L-BR002-06.pdf (18.5 KB, 310 views)

Last edited by shinbrianj; May 21, 2007 at 12:47 AM.
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Old May 21, 2007 | 11:29 AM
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I had a clicking/rattling sound too. Turns out it was the moonroof and there was something loose. Last week when I went in for an oil change @ Lexus they fixed the problem. I suspect your issue might be different though.
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Old May 23, 2007 | 10:38 PM
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So looks like its so far so good. In simple terms they just insulated the clips behind the dash.
Invioce says:

TSB NV003-06 Has been developed to improve this condition. R&R Instrument panel safety pad sub-assembly. Insulate Instrument panel Clips, HVAC Duct, and Defrost Nozzle.
-Road Test Vehicle - No Rattle Heard.


And there you have it....

Last edited by dan206; May 31, 2007 at 12:11 AM.
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Old May 23, 2007 | 11:11 PM
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dan206/

so this is a TSB ? is there a PDF for it?

cause i hear the samething when i run over those small squares that glow when light is on it(i don't know what do you call it but i am sure you understood)
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Old May 23, 2007 | 11:41 PM
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I guess that is the TSB for it but i actually do not have a copy that is what it just states on my paperwork when i got my car back. I don't know if there is a way you can search on that number provided somewhere. Sorry I can't help more.

D.
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Old May 30, 2007 | 06:40 PM
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Originally Posted by dan206
I am getting this fixed over this weekend. I had a tech ride with me said its not really that common but he has had this occur in other cars. Said it comes from clips that hold the dash in the front those bang against the window on bumps. I will write up what was actually done when i get my car back.
Lexus told me my clips were broken and are replacing them. But it looks like there's a TSB out for them now and I will mention to them when I bring it back in.
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Old May 31, 2007 | 12:06 AM
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i also have the same problem but mine is somewhere at the dashboard..weird thing is that i sometimes hear it and sometimes dont....can it be fixed at lexus?
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Old May 31, 2007 | 01:32 AM
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well, I'm must be going crazy.. cause for me.. I feel like if I hear it around the back end.. around the tired.. especially on the passenger side.. every time I go over a small bump or speed bumps it makes like a .. tick tick noice..
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