giantdefy

iTrader: (1)

I get this clicking sound from the rear end on my 2010 is250 when accelerating hard from a stand still. Sounds just like an LSD click, but I'm going straight. Does anyone have any idea what could be causing this?

Gville350

iTrader: (10)

Check the rubber half-shaft boots for cuts or signs of leaks; dry CV joints can make similar clicking noises.

getafewliv

Also make sure all of our lug nuts are torqued.

giantdefy

iTrader: (1)

My car has 20k miles now. It's been doing it ever since I bought it new. I seriously doubt it would have damaged cv boots straight from the factory. Lug nuts are tight.
Does anyone know if it might just be the VDC or traction control causing the clicking sound under hard acceleration from a standstill?

toky916

Same here it's driving me nuts I've been looking at the whole site searching for more info.

NYKnick101

If it happens under load, and you hear/feel it under your seat near the rear seat; I am about 95% positive that its the driveshaft yoke... When my friend and I built his G8, the yoke would dry up under its grease seal and click kind of how an axle would. You can usually re-grease them and they will be fine after; at least from my experience do it on the go.

Its an easy fix but does require disassembly of the driveshaft. I've never done it on an IS though so I cant really say if there is a difference between the lexus and GM drive shafts. If you can get under the car and see if there is any rust around the drive shaft joint, i can bet thats the issue

Mancebof

iTrader: (2)

This post is pretty old but if your still wondering, maybe its the rear winshield. I hear that there is a tab under the roof lining that rubs up against the rear windshield and makes a creaking/clicking noise that drives me insane. I hear you can shave the tab off. Maybe thats the sound?