LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Rumbling from front end - WWYD?

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Old 10-10-23 | 09:26 AM
  #16  
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Could be coming from steering shaft u joints or steering column. With the car off if you move the wheel left and right do you hear any clunking?
Old 10-11-23 | 02:13 AM
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Originally Posted by BigBoomer
If it's noisier over roads that are less smooth it sounds like tyre noise to me.
I used to have AVON ZV-5s on my LS which were nice and quiet but no longer available.
I replaced them with Goodyear Eagle F1 Asym3 and they are quiet but on certain road surfaces they are noisy as ****, especially on rippled concrete surfaces.
Nah my tires were dead quiet before the big change caused by the very harsh stop that resulted in a leaky strut. Since then I've had noise and roughness in ride, even though struts were changed, as well as LCA bushings, and more recently steering rack.

Originally Posted by pmesfun
Could be coming from steering shaft u joints or steering column. With the car off if you move the wheel left and right do you hear any clunking?
I do have a slightly bit of play in the steering column, I've been meaning to replace the knurled bolts, but that's not really the source of the noise, which is smooth on big bumps but rough and rumbly, even from the tires going over painted lines.


I think I'm going to start throwing parts at it, probably starting with strut mounts and UCAs, maybe LCAs.
Old 10-11-23 | 08:16 AM
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I have replaced everything on my car. UCAs did get rid of a clunking on big bumps.
Old 10-11-23 | 12:52 PM
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Originally Posted by pmesfun
I have replaced everything on my car. UCAs did get rid of a clunking on big bumps.
Are all your noises fixed?
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