Vibration/Wobble at high elevations + acceleration

[DriverX]

Originally Posted by andrewwynn

Definitely fortunately. Always easier to fix something that repeats.

Under power vibration implicates drive train not wheels. Engine mount or guibo are likely culprits

Oops I forgot to mention, both engine mounts and transmission/transfer case mount have been replaced in an attempt to resolve the issue. The wobble feels mostly like it is coming from the front right of the car.

[andrewwynn]

If the wobble is felt in the wheel and mostly just when the crown is just right (eg comes and goes but on particular curves it's reliable) it's the control arm for sure.

[DriverX]

Well, I had the wheels rebalanced and the problem still for the most part remains. However it's difficult to reproduce reliably locally, because there are very few places to get up to speed due to traffic (I live in California). But the few instances that I could get it to come back, it felt slightly different. A little less wobble in the steering wheel, but still apparent from the front right of the car just as always. It happens no matter the curve or straight line, the correlation is that it is always at a certain amount of accelerator pedal going certain speeds.

[Maruzo]

Have you checked the u joint in the steering assembly?

[andrewwynn]

If it's under load the problem more likely in drive train or suspension not wheel.

Something that is torqued like engine mount or guibo.

[andrewwynn]

Originally Posted by DriverX

(I live in California).

Found the problem. Not sure the best fix.

(We kid, don't be offered). I would investigate the engine mounts and the right strut tower bearing the last thing every checked. I don't think it's ever unloaded you need a spring compressor to do it. You can rent for free from Auto parts stores though

[crystalworks]

Originally Posted by andrewwynn

Something that is torqued like engine mount or guibo.

I was going to ask if the guibos and center support bearing had been inspected.

[DriverX]

haha yeah, California is a ruined state in many aspects. But until I find a job in actual America, I am stuck here.

I have not yet checked the giubos/flex discs - any hot tips as to what I should be looking for? I assume it to be in the front because that is where the wobble is mostly felt.

Also, I like your theory on the right strut tower, as we do get a suspension squeak going over bumps from the front right. But would that have any affect on wobble under load?

Thank you everyone!

[andrewwynn]

I would rent a spring compressor and check out the strut bearing.

[DriverX]

Solved (for me). It was the front CV axles. We replaced them both and now we no longer have acceleration vibration nor idle vibration. Thank you all.