New steering sound/thudding - Ideas?

[Mike]

Hey all,

Starting today a new noise started happening with my 22 R1T when actively turning. I'm dumbfounded on what this one is and couldn't find any videos online or on any forums/reddit with this exact same noise. Any ideas? I had service replace my front air compressor (PT00995399-C) a week or two ago so it was recently handled by service.

When this happens, the steering wheel also doesn't feel right, I don't know how to explain it other than the steering losing control or having a "skipping" feeling like it's losing steering so it makes me kind of uneasy driving it. It doesn't just happen at low speed, if I'm going 20-30 or pulling into a parking spot it also happens. I also raised the suspension and looked around both wheels, suspension, brakes, and took a peek at the subframe and didn't see anything that didn't look right, no loose bolts or parts touching anything it isn't supposed to.

Video -


Already scheduled a service appointment but it's on the 29th so it'd be useful to be able to figure out what exactly the cause is beforehand..

Edit: I think I might call Rivian tomorrow and have them give an idea or see if I can get it towed there maybe. I fed this into Gemini with the recent work history and while it might not be accurate it makes sense:
1. Loose Steering Intermediate Shaft Pinch Bolt (Critical Safety Issue)
To get clearance in the front left area, or if the subframe was slightly lowered to access the compressor brackets, the steering intermediate shaft (which connects the steering wheel column to the steering rack) may have been disturbed.
The Symptom: If the pinch bolt securing this shaft was loosened and not properly torqued back down (or left out entirely), the splines can slip or bind as you turn.
The Feeling: This perfectly matches the "skipping" or "losing control" feeling in the wheel, as physical mechanical contact is briefly slipping.
Action: Do not drive the vehicle if this is the case. If the splines strip or slip entirely, you will completely lose the ability to steer.

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[elektrode]

Weird. I just started experiencing something similar. For me I’ve heard a pop a couple of times and the center of the steering wheels feels less certain and it’ll settle left or right of center.

 

[Mike]

Weird. I just started experiencing something similar. For me I’ve heard a pop a couple of times and the center of the steering wheels feels less certain and it’ll settle left or right of center.

Have you had the halfshafts/dampers replaced? If you don't actually feel much in the steering wheel (like the skipping/loss of steering for a split second) it's probably a halfshaft/damper issue. Back in December or January I had a popping sound when turning as well and a tech drove it and wrote a note about and he replaced both left/right halfshafts and dampers that had a leak. This issue I have now can actually be felt in the steering wheel pretty good alongside the

 

[elektrode]

Have you had the halfshafts/dampers replaced?

just the ting washers and another round of tightening.

If you don't actually feel much in the steering wheel (like the skipping/loss of steering for a split second) it's probably a halfshaft/damper issue.

I hear the pop when the vehicle is stationary and I’m turning the wheel fully. Happened the first time when I started to back out and the front wheels were against the curb.

the pop sounded like the steering mechanism “region”. I can influence where the steering wheel sits off center by turning the wheels full one direction and then back to center. The steering wheels favors that direction of turn.
It’s weird.

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