elid786

Hi guys

Recently out of no where my front end of the ls430 has been making a noise. it starts at around 35mph and while driving to the right the noise gets louder and to the left its quieter.

It does get a little louder when driving on the motorway and when I took it to a mechanic thinking it was a wheel bearing they said they couldnt see if it was as it was all acting normal. Could it be anything else? the noise is only from driving and turning right at speeds around and above 35mph, nothing over any bumps or at any speed below that.

Also I have a VSC light on and when I did a little one of them tricks to check what it was it said diag 39, what could this be as well?

Thanks in advance!

Lavrishevo

iTrader: (1)

The symptoms you describe sounds mostly like a wheel bearing. Suspensions bushings will pop, clunk, or squeak.

Or the sensor has totally failed.

Tom57

When a wheel bearing goes bad, in addition to sound, the speed sensor mounted on the bearing may detect the wheel drag from the bad bearing and throw a VSC light.

username32

or it has a incorrect sized tire on that one side and or wear pattern that causes noises.

elid786

tires should be all fine as all are the same size etc. but thanks for the advice guys

with regards to the wheel bearing, whats the best way to check? As I cant pin point if its the front left or right. And if the garage I went to before couldnt even see if it was a bearing then is there another way?

Whats the best way to find out whats throwing the VSC? lexus? or can another form of OBD reader work?

username32

The ABS sensor is the integral part of the front hubs so maybe the hub have so much play that the sensor magnet gets misaligned or hit the steel internal sensor gear ring during loading and unload during cornering? Not likely but, its possible and that's why the VSC is on since it does use the ABS sensors to monitor wheel speeds. Its not uncommon for the wheel bearings to go out on the LS, ive read about them enough times to see that they are a common wear item. In fact there is a write up on a how to for the wheel bearing on the first page of the LS430 section.

elid786

Yeah I find that weird really, they make a car which is basically bulletproof (fingerscrossed) and the common faults seem to be things that any other lexus or toyota just never have, weird but got to play the game I guess. Just need to figure out which side it is from!