HELP DIAGNOSIS: Steering wheel vibration/shake

1. Replaced out of round tire
2. Running 2 new pss tires fronts
3. Replaced bent straightened wheel
4. Replaced 2 front thrust arms (72k original part)
5.road force balanced all wheel 2lbs left and 6 lbs right
6.alignment good (toe?) specs stock
7. Replaced drive shaft (cowbell noise
8. New rod bearings and engine mounts

Steering wheel shake presists at 60mph. Gets worse 65mph to 80mph. Higher speeds varies inconsistent to non exististent at 100mph plus.

Suspension clunking noise front and some rear noise over bumps, heard in parking lot inclines when entering uphill or downhill.

HRE free flow 19in
Tires pss 265/30/19 F , 295/30/19 R

Have had this setup for 2 years and no issues.

What else should I check or replace?

Thanks in advance!

Are you on spacers or no? Could be aging struts / susp assembly..

Does the vibration change based on throttle input?

Also, when cruising 60-80 mph place the vehicle in neutral to see if the vibration changes at all.

LostPanda wrote

Are you on spacers or no? Could be aging struts / susp assembly..

No spacers
Stock suspension and orginal at 72k, except new thrust arms

Jobe. wrote

Does the vibration change based on throttle input?

Also, when cruising 60-80 mph place the vehicle in neutral to see if the vibration changes at all.

Same shake in neutral, no suspected driveline issue

When did the vibration start...? Have you measured the run out of the rotors or hubs with a micrometer?

I’d look at replacing the front rotors and one front hub next

Also it looks like you listed front thrust arms twice or have you replaced both front arms (4 total)? If not, replace them.

Also check your front toe. My car had toe out and I replaced a few front suspension parts which resulted in toe in and my problem is gone.

Examine:
- Lower control arms
- Tie rods

E92/// wrote

Same shake in neutral, no suspected driveline issue

E92///, my guess would be your engine mounts are shot.

I went through similar exercise, twice. Once at around 50k miles, and again after 95k miles. In both instances, regardless of spacers or not, new arms, wheel hubs, new rotors, etc, the main culprit turned out to be worn out engine mounts.

Not easy to get to the engine mounts, so it's not something obvious to most owners. But I think if you are still on your original mounts at 70k+ miles, they are done. Putting new ones in, even just OE, should make huge, immediate improvement to your steering wheel feel

LostPanda wrote

Are you on spacers or no? Could be aging struts / susp assembly..

no spacers and all suspension is good also thrust arms just replaced even though they did not make and noise or create bad handling. it was done for matience due to 70k plus mileage.

Jobe. wrote

Does the vibration change based on throttle input?

Also, when cruising 60-80 mph place the vehicle in neutral to see if the vibration changes at all.

doesnt matter if nuetral of 5 or 6 gear it still there from 60-100

W Cole wrote

When did the vibration start...? Have you measured the run out of the rotors or hubs with a micrometer?

I’d look at replacing the front rotors and one front hub next

Also it looks like you listed front thrust arms twice or have you replaced both front arms (4 total)? If not, replace them.

Also check your front toe. My car had toe out and I replaced a few front suspension parts which resulted in toe in and my problem is gone.

rotors and hubs run out is fine. only replace 2 front thrust arms all others looked fine. The toe was off due 1 shops opinion however the previous aligment showed all specs including toe within green. They said tires showed toe related early signs of tire wear. However the car drives straight and does not pull. Also was told all 4 wheels had to much weight when roadforced balanced previously even though the numbers read good at 2lbs and 6lbs.

Icecreamfoo wrote

E92///, my guess would be your engine mounts are shot.

I went through similar exercise, twice. Once at around 50k miles, and again after 95k miles. In both instances, regardless of spacers or not, new arms, wheel hubs, new rotors, etc, the main culprit turned out to be worn out engine mounts.

Not easy to get to the engine mounts, so it's not something obvious to most owners. But I think if you are still on your original mounts at 70k+ miles, they are done. Putting new ones in, even just OE, should make huge, immediate improvement to your steering wheel feel

just had rod bearings replacement service and new engine mounts done 3k miles ago.

Good thing we got this all squared away for you Dan.

jeff@autocouture wrote

Good thing we got this all squared away for you Dan.

In ACM WE TRUST!

So what was the issue?

UPDATE:
Road force balance checked and found that all four wheels had too much weight. Previous Road force balance readings within spec.


Alignment checked and found toe was not exact. Previous alignment readings were within spec

Steering wheel shimmy gone but vibration still present. Last Summer at 68,000 miles with original oem suspension I hit a major pothole on an off ramp and suffered a bent wheel. Since then wheel has been replaced, Road force balance and alignment fixed.


Thrust arms replaced and waiting for test drive with Factory OEM wheels.


Car never had a vibration since I owned it up to 68,000 miles and now has 73000 miles with a very present steering wheel vibration. Hopefully the set of wheels will improve or completely get rid of the steering wheel Shake. A different set of wheels was put on the vehicle couple thousand miles ago and it made no difference. My feeling is that the stock suspension is worn out in the pothole created the vibration that I am experiencing now. May have to replace control arms however my shop is advising that this may not fix the solution.

HRE wheels have been on the car for 2 years and no issues. Hubcentric and no wheel spacers. Shake 60mph plus at all speeds


HI

so all 4 wheels reblanced and told the weights were to much and toe front was adjusted.

All previous print outs show within green specs so the minor adjustments only improved the steering wheel shimmy. BUT the vibration in the wheel is still there 60-95mph and goes away at 100mph.

I know i hit a really bad potehole on an on ramp last year and the car had 68k miles. Now at 73k and car has never been the same.

Wheel bearings i am told never cause a steering wheel shake.

The suspension is original and maybe worn out.

I think it could be a bent hub because everything has been rechecked so many times.