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godfodder0901
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- Jared
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- 2022 Rivian R1T LE
Sounds like the friction brakes being applied for auto hold. To be honest, my stops are very smooth and I rarely, if ever, notice the friction brake application point.
DaveA
Well-Known Member
Yup...but I'm having an ongoing issue with half-shafts, but now have a loud pop that sound like something engaging and disengaging. SC appointment Tuesday.
booslim45
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I have the issue with the half shaft too and I get the famous "it is operating according to specifications" from the Brooklyn service team. Now my pedal vibrates on regen braking.
Deleted member 7086
Guest
Sounds like the infamous half shaft /spline problem. My R1T was absolutely quiet with no driveline play at all until 3,000 miles. Then the slack and noise slowly started and over time became worse. The first two repairs were the bandaid “let’s clean and repack the grease and tighten everything down” attempts which of course didn’t help. Then I discovered on line that Rivian was offering a different repair, which the SC didn’t mention, but I suspect even they were unaware of, adding special washers to the repair. This third repair was helpful but occurred in the fall and of course during the winter with much colder temperatures (thicker grease) it was hard to tell in the long run how good the repair would be. With the return of warm summer temperatures (thinner grease) the slack and noise have returned but not to the degree present before so I guess the repair was helpful. My R1T was an early build and it is my understanding the splines and half shafts were manufactured by a third party. While a pure guess on my part I suspect the tolerances, either as originally designed or in the manufacturing process, were not as tight as they should have been and/or the metal was too soft allowing premature wear. In any event, absent a really loud assembly with significant play I would be surprised to see Rivian offer a different repair (replace the half shaft/splines).
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R1Tom
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Sounds like the good old Tic Tok. Mine does it pretty significantly. All 4 clunk from power to regan and back. But might not fix it till service gets to a point I can schedule service, drop it off early day of appointment, go fire up computer eithrr in waiting area or at local food joint, and work, and by end of day, take it home. Plus it sounds like fix not even be permanent, in which case I likely will never get it fixed unfortunately.
R1Tom
Well-Known Member
Outside chance you have a broken subframe. If that were case the motor/transmission assembly might move prior to delivering torque to wheel and then clunk when contact happens. Again...outside chance, but there have been reports of failed welds on subframes for trucks with welded subframes. Newer trucks have cast subframes which wouldn't likely have any failures of this type.
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NorthVan57
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Have been examining the “clunking “ posts on this forum and seems alarming for a vehicle i want to drive and enjoy without too many issues, for many years. I am currently waiting patiently for my email that my car is ready to purchase, lots on the R1S shop, but was going to wait until my build is ready, not sure when that will be, was wondering if any of you know when the cast subframe was introduced and should I look for a build date past that timeline? If I pick, for example, one in the shop that was built in march 2023, is that still with the old welded subframe? Also, will the driveshaft slop be something I can live with over 8-10 years of ownership? Been waiting for couple years and could pick one of shop today but would like some help/advice from all you early adopters! Thanks in advance for any thoughts!!
Brent
Brent
DaveA
Well-Known Member
Just had my fronts redone with newer washers…Not hopeful it will last but mobile tech said he would put in an engineering ticket for new hubs and half shafts if it comes back. My understanding is that Rivian has a contract with the hub manufacturer and can’t be broken just yet so the washer treatment is the band aid. If dual motor has none of these issues I’m moving to that…with the new subframe and altered suspension seems that might be the way to go. I couldn’t care less about .5 seconds slower than quads.
DaveA
Well-Known Member
I haven’t heard many newer owners complaining about excessive driveline slack or tock, and some claim they’ve never had an issue. It won’t become apparent if there’s an issue until 5k plus miles though from the ones I’ve driven with it.
rpmtexas
Well-Known Member
- Thread starter
- #14
My current thinking is it is going to be unwise to hold one of these early Rivians past the 5 year mark. There are far too many serious problems observed in many vehicles to justify it in my opinion. In addition to driveline, AC, and suspension problems, the overall build is suspect. I have found several pieces of trim popping off both inside and outside my vehicle. I opened the passenger door two days ago after a brief storm and the door jam was full of water. I think holding past five years is just too risky personally
LeoH
Well-Known Member
Mine has it, and when I spoke to the Chicago Service Center technician, he claimed those are the suspension valves balancing the cars, when I asked him to show me the proof from the engineering, he said he does not know where those valves are and that is intellectual Property... btw I have major issues with that service center, as they also claim that the car will not show warning all the time for things like open doors even if they register as such in the logs!
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