nsecon

Hello,

I've just purchased a 98 LS400 w/ Nav--94k miles. The car has full service records and is in excellent shape overall.

I'm not sure however, if it's just me, but there's a weird vibration coming from the car. At around 30 mph, the front center armrest has a strange vibration, kind of like a wheel being off balance, etc. And at 70-80, the car has unusual vibrations going through it, even if I'm driving through smooth highway.

Also, when I hit a pothole w/ my front right wheel, while making a left turn, the front right will make a metal to metal sounding clunk.

I took the wheels/tires to a shop to have it balance and shaved... it improved the feeling at 70-80... so it's pretty solid now, but the 30 mph vibration is still there.

I had the car inspected and Lexus said everything checked out fine and my local non-lexus specialized mechanic also said that everything seems OK w/ the car.

I suppose it's because I don't know if this is normal for it. But it seems to me that a car of this class should have a smooth drivetrain/susp. when going over smooth pavement.

Anyway, are there any suggestions I could try OR perhaps even better yet, an independent Lexus Mech. in the Los Angeles/Orange County area who can take the time to try and diagnose this w/o charging an arm/leg?

Thanks in advance for your time, I look forward to solving this issue and start really enjoying the car!

RA40

iTrader: (6)

Congrats on your new baby.

This is pretty common and it is typically the strut bars and/or the upper control arm, may want to have those checked.

The vibration...

GRAND_LS 4

iTrader: (2)

Also, it wont hurt to check the transmission mount.

GRAND_LS 4

iTrader: (2)

Oh man, i just noticed i had the same 30-35Mph vibration... also a clunk coming from front driver side (im guessing upper control arm).

Let me know what happens there, because im in the same boat your in.