[BYprodriver]

Originally Posted by speedyspaghetti

Hey everyone -

I'm now starting year 2 of the steering wheel shake saga... Anyway, the most recent thing I did has improve the issue significantly (maybe 75% gone now) but I still have this infuriating shake in my steering wheel at 75+ mph and a lot of bump steer / some play in my steering.

Car is 2002 S with 88k miles.

I have replaced all of the following items in search of this issue:

Tie rods (in & out)
Drop links (front)
Struts & Strut mounts (front and rear)
Control arms (front and rear)
Front tracking arms
Rear trailing arms
Wheel bearings (front)
Tires (Continental ExtremeContact DW)
Sway bar bushings (front and rear)
Multiple alignments
Multiple tire balances

All parts are OEM.

Most recently, I went to a Porsche dealer and had them align the car and balance the front wheels. The toe was set to toe out on both the front and rear which they then corrected to zero toe in on the front and slight toe in on the rear.

I'm really at my wits' end here. What else could I look at? I have thrown a ton of money at this issue and I just want to enjoy my car again.

Pretty much every shop I have taken it to has claimed it to be wheel balancing, and I have had the wheels balanced probably 5 times all on Hunter Road Force machines. Every time they balance them, they seem to be close to a 1/2 oz out of balance - is it possible that there is something inside my tie that is causing this? This issue started with my old tires and has continued with the new ones too. I've had multiple places check the rims for bends, but nothing has been noticed - only thing I can think of is that they have not checked the rims with the tires off. I have also tried different PSIs and swapping tires L/R.

Rotors have a pretty significant lip on them, but the vibration does not get any worse when braking. The vibration does seem to get a little bit better as the car warms up... any help would be awesome guys.

Whenever you have wheels & tires balanced it is best to observe them spinning on the balancer to see if there is noticable excess movement, as this is the most common cause for what you are feeling. Once you have seen with your own eyes this is not the problem,move on to the next most likely cause. At this point I would guess you have a bad wheel bearing or suspension part. Try driving by a wall late at night to listen for any unusual noises, the wall will bounce the noise back to you.