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Torsion bar under tailgate flap

Shorebreak

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Did you know that there's a torsion bar (don't know if I'm calling it by the right name) under the inside flap of the tailgate/lower part of the split tailgate (not the liftgate)?

I didn't know there was such a thing under there. I just thought the bottom part of the tailgate flopped open heavily. This thing slightly softens the opening and closing of the flip down part of the tailgate.

I found this out when mobile service came to me today to fix my tailgate not opening when parked on a decline.

We went through hours of moving the latch, loosening and shifting bolts all around the assembly... fixing one issue, then creating another - e.g. it wouldn't close at one point, then the latch wasn't operating, and when the gaps looked better cosmetically we were back to square one............

During the course of all of this, the tech saw that this torsion bar thing wasn't hooked in correctly, so he tried to fix that, too. You'll notice in the pics that he scratched some things up and chewed up the latex covering on the bar. All internal, so not a big deal to me. I'm going treat the scratches to make sure that it's not affected by moisture, but I'm not worried about it.

He tried a few times and couldn't get the bar to stay in place. After fixing the tailgate not opening on a decline issue, he said I'd have to put in a ticket for the torsion bar.

I thought I could figure out the problem by thinking through where it was rubbing and about how leverage works... If you have the same issue, here's how I fixed it:

1. Tapped the "latch" assembly where it ever so slightly is more "closed"
2. Tapped the hook part of the latch down slightly - steps 1 and 2 are just to make a more extreme hook than how it was
3. Put the bar into the hook - this takes a little bit of effort, but you can do it by holding the tailgate almost closed and using something like a tool handle to pry the bar into the hook
4. Tap down the tip the bar now that it's in place, again, meant to make more of an extreme clasp between the hook and the bar
5. Push the length of the bar away from the tailgate and toward the body of the car as much as you can

Don't know if this is a common problem... Maybe most people with this issue don't even know about it and just think the bottom part of the tailgate just flops open. (It still flops open, but you can tell that it's softer/"lighter" than before.)

Rivian R1T R1S Torsion bar under tailgate flap before1

You can see how the bar isn't engaged in the latch/hook above.
Rivian R1T R1S Torsion bar under tailgate flap after1

Now you can see how it's supposed to sit in the latch.
Rivian R1T R1S Torsion bar under tailgate flap before2

Closer view of the bar not properly in place.
Rivian R1T R1S Torsion bar under tailgate flap after2

Closer view of bar in the latch.

Please excuse the scratches and chewed up covering on the bar - that was all the tech's work. I did my actual fix of the problem without making any marks.

The trick isn't really getting the bar in place if you have this problem, it's about keeping the bar from slipping out again. After some pretty heavy testing, it looks like it's holding in place after I did all the pulling and pushing on the bar and latch.
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harkco

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Thanks for the insight! Little issues like this are a pain sometimes to have service fix. I would much rather work on my own truck when possible. No one babies your baby like you do.
 

PowerBugs

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Good job ? figuring it out yourself but I would still want a new “torsion” bar if it was me just because I want it to look like new rather than beat up looking.
 
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Shorebreak

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OP here. I might wrap some electrician's tape - or leftover gorilla tape from taping my running boards holes - just to make it look cleaner. Or I might just peel off the chewed up covering and not tape it back up again.
 

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Brb, going to purposely pull mine out so my tailgate doesn't open on its own if someone is messing around with the button and the truck is unlocked.
 

citizen

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Just found this thread. Mine originally popped out a few months ago. Some folks told me to stick with the service visit as they apparently had a replacement part that would prevent this from happening again. After I got it back from service, that wasn't the case.

Anyway, it just happened to me again this morning (after the SC fixed it) and the trick to getting it back on is to almost have the tailgate in the vertical / closed position. At that point, slip your hand into the opening and the torsion spring will be much easier to maneuver onto the hook.
 
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Shorebreak

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Just found this thread. Mine originally popped out a few months ago. Some folks told me to stick with the service visit as they apparently had a replacement part that would prevent this from happening again. After I got it back from service, that wasn't the case.

Anyway, it just happened to me this morning and the trick to getting it back on is to almost have the tailgate in the vertical / closed position. At that point, slip your hand into the opening and the torsion spring will be much easier to maneuver onto the hook.
This is exactly what I ended up doing. Helpful that you actually describe it here for others who might be wrestling with it, too.
Not only did the mobile repair guy not fix it, but he kind of jacked up the area and I had to do some scratch repair - thankfully it was all internal, so nothing shows externally.
 

citizen

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I watched as my wife this afternoon GENTLY opened the tailgate (she knew I was watching and judging her). And both of us heard the torsion rod pop off the hook. She couldn't have been more careful.

Anyway, after fiddling with it and getting it back on again, took @supervlover 's advice and tried to tie it down to prevent it from popping off again.

Rivian R1T R1S Torsion bar under tailgate flap 1716525514838-x6
 

Polar

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Rivian R1T R1S Torsion bar under tailgate flap IMG_3842

Been there. Done this as well.
 

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citizen

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Damn I know that’s zoomed in but that’s a beefy looking zip tie. Might attempt that if my wire doesn’t hold up.
 

Perplexed

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Did you know that there's a torsion bar (don't know if I'm calling it by the right name) under the inside flap of the tailgate/lower part of the split tailgate (not the liftgate)?

I didn't know there was such a thing under there. I just thought the bottom part of the tailgate flopped open heavily. This thing slightly softens the opening and closing of the flip down part of the tailgate.

I found this out when mobile service came to me today to fix my tailgate not opening when parked on a decline.

We went through hours of moving the latch, loosening and shifting bolts all around the assembly... fixing one issue, then creating another - e.g. it wouldn't close at one point, then the latch wasn't operating, and when the gaps looked better cosmetically we were back to square one............

During the course of all of this, the tech saw that this torsion bar thing wasn't hooked in correctly, so he tried to fix that, too. You'll notice in the pics that he scratched some things up and chewed up the latex covering on the bar. All internal, so not a big deal to me. I'm going treat the scratches to make sure that it's not affected by moisture, but I'm not worried about it.

He tried a few times and couldn't get the bar to stay in place. After fixing the tailgate not opening on a decline issue, he said I'd have to put in a ticket for the torsion bar.

I thought I could figure out the problem by thinking through where it was rubbing and about how leverage works... If you have the same issue, here's how I fixed it:

1. Tapped the "latch" assembly where it ever so slightly is more "closed"
2. Tapped the hook part of the latch down slightly - steps 1 and 2 are just to make a more extreme hook than how it was
3. Put the bar into the hook - this takes a little bit of effort, but you can do it by holding the tailgate almost closed and using something like a tool handle to pry the bar into the hook
4. Tap down the tip the bar now that it's in place, again, meant to make more of an extreme clasp between the hook and the bar
5. Push the length of the bar away from the tailgate and toward the body of the car as much as you can

Don't know if this is a common problem... Maybe most people with this issue don't even know about it and just think the bottom part of the tailgate just flops open. (It still flops open, but you can tell that it's softer/"lighter" than before.)

before1.jpeg

You can see how the bar isn't engaged in the latch/hook above.
after1.jpeg

Now you can see how it's supposed to sit in the latch.
before2.jpeg

Closer view of the bar not properly in place.
after2.jpeg

Closer view of bar in the latch.

Please excuse the scratches and chewed up covering on the bar - that was all the tech's work. I did my actual fix of the problem without making any marks.

The trick isn't really getting the bar in place if you have this problem, it's about keeping the bar from slipping out again. After some pretty heavy testing, it looks like it's holding in place after I did all the pulling and pushing on the bar and latch.
Funny- I just assumed that the tail gate dropped without assistance and that was normal.

Until I sent my R1S in for service, then they told me it was missing LOL.
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