Well, I see a couple of things here ...

1: the car was said to be damaged on the driver's rear. This seems to be backed up by the alignment situation. Something is likely bent ... a strut or control arm perhaps ... maybe a wheel too.

2: If the vibration is coming through the wheel, it's most likely and issue in the front suspension.

Here is a likely scenario ...

The car is hit in the left rear. The damage isn't "bad enough" to replace parts. The owner accepts that it's slightly "off." Let's say the wheel and control are were bent slightly.

Now, 5k+ miles down the road, some new tires are put on or simply rotated. The damaged wheel ends up on the front and the slight bend is now noticeable through the steering.

My suggestion would be to inspect the rear suspension very closely to see if you can notice any deformities in the control arms, trailing arms or struts. Then, re-check the balance on all 4 wheels/tires and (high speed w/ road force if possible ... most dealerships have this) and visually inspect them for warping. you could also use a gauge on the lip of the wheel to check it for trueness ... I can't remember the name of the gauge off the top of my head, sorry. But it would sit against the edge of the wheel while you turn it slowly and it tells you the variation in the wheel.

 

Well I replaced the strut and spring on all four corners and I visually inspecting the control arms and suspension components while I was doing it and diddn't see anything out of the ordinary. I plan on getting a new set of wheels and tires along with new rotors/pads.

 

Just wanted to post an update....

The vibrating seems to be intermittent now. Sometimes it will shake a lot, other times the vibration is extremely minimal, barely noticeable.

Either way, I'm ordering a new set of wheels and tires and putting on new rotors and pads. I hope that fixes it.

 

subscribed.. mine shakes lot until like 80 or 90 then smooths out for some reason.. my corrections have been..
whiteline rollcontrol balljoints n tie rod ends.
new sdrive tires, balanced
alignment..
powerslot slotted discs, hawk hp pads within the past year..

haven't tried shocks yet..
I'm looking for a set now, because it tries to pitch out on the back when hitting a good bump..


see how yours turns out see what else I can do.

 

Yea, I'm hoping the new wheels/tires do it for me, but money is tight now so I'm not sure when that will happen.

 

I just wanted to post up some updates....

This past weekend I installed new rotors in the rear and new brake pads in the front and rear. The vibration is significantly less on the highway, but there is still a little bit that is noticeable at highway speeds. I'm attributing this to an unbalanced wheel.

New wheels/tires are arriving today, so hopefully that should make the vibration go away 100%. I will be sure to post up the results.

 

Just another update. I put the new wheels/tires on and took it on the highway up to about 85-90mph. 99.99999% of the vibration is gone, so I consider this issue resolved. Thanks!

 

id say broken belt in the tires or may be wheel bearings

 

glad the new tires and wheels fixed the problem, the slightest bend can cause vibrations.

even when the wheels "high speed balance" out...the only way to truely tell is through a road force balance.

 

worn tires/damaged. tire rotation

 

So I drove down to MD for work this week and thought the evo would be in tip top shape. Somehow the steering wheel shake is back. I replaced (in this order), outer tie rod ends, shocks/springs, rotors & pads, wheels and tires. Once I put the new wheels on I thought it was gone. But for some reason today it's back. I tried to take it to a nearby Mitsu dealership but they are booked solid for the week. I'm guessing the tie rod ends got ruined again because I still had blown shocks on the car when they were replaced. It definitely feels like a steering issue because the car tends to wander. Damn!

 

I was having the same problem with the vibrating steering wheel, when i took off the tires to check them out they were so worn inside.... after a brand new set of tires the vibrating pretty much went away

 

I just said that i replaced both my wheels and tires dude. Thats obviously not my problem

 

Installed brand new OEM outer tie rod ends today. Took it for a drive and absolutely nothing changed. The old tie rods seemed to still be in excellent shape, so I kept them. I'm not sure what it is now. I put in new suspension, new tires/wheels, new tie rod ends (twice), 4 wheel alignment, and still have a shaky steering wheel at highway speeds. It definitely feels like a part of the steering system. Maybe a bad bushing or inner tie rods? I guess I'll just have to take it to a shop and have them figure it out. I'm getting very tired of working on this stupid car.

 

Same issue here. Found out my stock PC wheels are helps bent. Got new tires 6 months ago and on the balancing wheel, its very obvious the wheels have dents and imperfections.