Propofoln
Member
called Porsche Dallas, my local dealer and they would not do it. I don't see why it matters who does it anyway. The machine is all computer software and does it all by computer right?
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2021 Model S Plaid Steering Yoke shaking at highway speeds
- Thread starter CWJameson
- Start date
called Porsche Dallas, my local dealer and they would not do it. I don't see why it matters who does it anyway. The machine is all computer software and does it all by computer right?
They don't take kindly to Tesla folk around there lol.... VW/Porsche being decimated by EV's specially Teslas.
Propofoln
Member
No, it's not all computer software... the act of putting the tires onto the wheels is an art in itself. With all due respect, I don't think many in this forum understand the physical process of road force balancing. I encourage everyone with this vibration issue to watch this video ACTUAL Road Force Balancing Process and then ask yourself, do you really believe the Tesla service centre or even a discount tire has the time or care to do this perfectly?
Propofoln
Member
I’ve had lots of other cars with no vibration at that speed. Just find it hard to believe your solution would solve an issue I have that is the exact same with 2 sets of wheels and tires that have the exact same vibration at the exact same speed. (I would be more inclined to think it might help if not for new wheels and tires)
n2mb_racing
Active Member
If anyone is near Durham NC, happy to swap wheels to test if the vibration goes away. I don't have the 80+ mph.
Does your sets of wheels have similar specs in size and weight?
Thinking this factors may affect harmonics on shafts/motor assembly.
Propofoln
Member
They are the exact same 21 arachnid wheels from factory that were replaced by Tesla. Same vibration with both sets
So there shouldnt be any change on the vibration considering that the problem is not on the wheels or tires.
Changing wheel/tire weight, height and/or offset will make the vibrations better or worse because of its total effect on half-shaft/motor harmonics.
lol nope. They did another really good road force balance and the issue doesn’t come up until over 85. That being said, apparently there is a software update coming.
Propofoln
Member
WilliamG
Hinge Fanatic
These issues may well be related. The 40-50mph vibration is actually a little wider than that. I can feel it from mid 30s to early 50s and even then above 50s I’m sure it’s still there but masked by road “noise” (surface etc) and general vibration. It’s possible the next vibration “step” is about 80mph. Mine does it, too.
Propofoln
Member
Does it feel like tires are unbalanced after 80? I think the 40-50 mph vibration my 2021 msp had was a driveshaft vibration because it goes away in track mode with 100% rear bias. The 80+ is unaffected
WilliamG
Hinge Fanatic
You’ve tried 80+ in Track Mode rear bias and you still get the yoke shake? Well, that rules out my potential theory!
Propofoln
Member
This may a bit of a science experiment, but I'd be curious if your vibrations are more tied to the vehicle transnational speed or the wheel speed.
If you consider the whole tire/wheel diameter, then if you did you vibration test with 21" wheels and then swapped them out for 19" wheels, I'm curious if the speed at which your vibrations would start would change. If so, then the problem would have to exist with a component that's rotating or interacting with the wheels.
If you could find a surface to securely mount an accelerometer to, you may be able to better isolate the location by seeing where the vibration amplitude is highest.
Propofoln
Member
So with my car at the service center for it’s 7th time, Tesla informed me that the 80+ mph vibration is a know issue now with certain 2023 VINs and they are investigating the cause. They don’t know the cause. They are initiating a buyback request. I’ll see what they offer me.
WilliamG
Hinge Fanatic
Certain 2023 VINs, despite it also occurring on 2022 VINs, too, and probably 2021s. Lolz. Let us know what they offer you.
n2mb_racing
Active Member
I haven't found this vibration on my '21 or any other '21s. I have seen it on '22s and '23s.
WilliamG
Hinge Fanatic
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