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Model Y Squeaking Noise Near Trunk Door

Frappas13

Member
Apr 7, 2021
5
0
TX
Hey all,

I'm a brand new Model Y owner (about 3k miles so far) and just recently my trunk has started making this really loud squeaking when the rear of the car hits ANY kind of bump. Here is a brief video
(you can hear it really good near the end of the clip)

I took it into my SC and they said the lift gate needed to be tightened to be more secure. I picked up the car from the SC yesterday and the noise was gone for about 20 miles until it came back with a vengeance. I have tried everything from putting electrical tape around the latch, checking if it's actually the rear seats, cleaning it, etc...

This is really driving me insane and I really don't want to wait another 3 weeks to take it back in. Was wanting to post here to see if anyone else has had anything that worked.

Thanks all and sorry if this has been posted before
 

fr4c

Member
Jan 4, 2019
64
31
New Jersey
I had the same noise, and did the following which solved all the squeaking noises I had in the back. I'm ranking them in difficulty/time order:

1) Adjust the bump stops on the rear trunk, so all 4 rubber feet on the trunk mates firmly with the rest stops.

2) Pull out all of the rear seat headrests, and lube the headrest steel posts lightly with white lithium grease etc. I personally used Krytox GPL205.

3) Pull up rear seat bench, and apply automotive felt tape on the steel tube bars that the seats snap into. The prevents the rubbing/squeaking sound of the bottom of the seat (styrofoam) against the tubes.

4) Rear cargo side trim and sub/amplifier, is what I consider the hardest as you will need to remove and dissemble quite a few pieces.
  • What I found is that the amplifier is screwed into the bare frame of the vehicle, and was squeaking when I tapped on it. I removed it and placed felt on all the contact points before screwing it back in. This solved all squeaking.
  • The plastic trim pieces on both rear and passenger/driver side are snapped into the body panels. However on my rear passenger side, one of the metal snap clips was not installed correctly from the factory, and was actually bent out of place and rubbing against the frame. A few plastic snaps were also mashed/bent. Installing this piece correctly is a major PITA, as you need to snap about 10 clips into their slots on the inner rear fender frame. So I don't doubt that there is a good chance that some of these are not installed correctly from the factory, so you potentially have metal/plastic tabs rubbing against the inner frame of the vehicle.
  • The problem area, as well as another poster who shared a very useful breakdown of how to take apart these trim pieces: Remove rear trunk trim
After doing all of the above, this has solved all squeaking/rubbing noises that I had in the rear of the vehicle. It took me a while to figure this out so I hope this is helpful in fixing your squeaks.
 

Frappas13

Member
Apr 7, 2021
5
0
TX
I had the same noise, and did the following which solved all the squeaking noises I had in the back. I'm ranking them in difficulty/time order:

1) Adjust the bump stops on the rear trunk, so all 4 rubber feet on the trunk mates firmly with the rest stops.

2) Pull out all of the rear seat headrests, and lube the headrest steel posts lightly with white lithium grease etc. I personally used Krytox GPL205.

3) Pull up rear seat bench, and apply automotive felt tape on the steel tube bars that the seats snap into. The prevents the rubbing/squeaking sound of the bottom of the seat (styrofoam) against the tubes.

4) Rear cargo side trim and sub/amplifier, is what I consider the hardest as you will need to remove and dissemble quite a few pieces.
  • What I found is that the amplifier is screwed into the bare frame of the vehicle, and was squeaking when I tapped on it. I removed it and placed felt on all the contact points before screwing it back in. This solved all squeaking.
  • The plastic trim pieces on both rear and passenger/driver side are snapped into the body panels. However on my rear passenger side, one of the metal snap clips was not installed correctly from the factory, and was actually bent out of place and rubbing against the frame. A few plastic snaps were also mashed/bent. Installing this piece correctly is a major PITA, as you need to snap about 10 clips into their slots on the inner rear fender frame. So I don't doubt that there is a good chance that some of these are not installed correctly from the factory, so you potentially have metal/plastic tabs rubbing against the inner frame of the vehicle.
  • The problem area, as well as another poster who shared a very useful breakdown of how to take apart these trim pieces: Remove rear trunk trim
After doing all of the above, this has solved all squeaking/rubbing noises that I had in the rear of the vehicle. It took me a while to figure this out so I hope this is helpful in fixing your squeaks.
Thanks so much for the reply, I'm not as car savy so I just went out and tried adjusting the bump stocks a little; I didn't want to loosen them too much to cause it to pop hard when I opened it but I think I got it to a more secure point (on the side the bolts around the rubber weren't even tightened)

I'm hoping this solves it and i'll take it out later to see; I do notice my rear seat headrest does squeak too so I may give that a shot as well with the grease. 3 and 4 seem a little out of my league so if it's still really bad I may have to research and give those a shot.

Seriously thanks again for the reply as I haven't thought of all of those.
 
Mar 26, 2021
5
10
US
Definitely check whether it's the rear headrests by removing them and driving. Can remove the rear headrests by popping them up a bit and using something like a bent paperclip in the small hole to release them all the way up and out. Thanks @fr4c for the recommendation on the specific lubricant to silence them; going to give that a try in my car once it arrives rather than putting the headrests back in and taking them out after every time someone needs to ride back there.

I also have my seatbelts make noise sometimes. Can check whether it's them by plugging them in (even with no one in the seat) and then driving around. Can either leave them plugged in or hook them on the edges of the seats to stop them from moving.

About the hatch stops, there is a specific method you can use to get them to the optimal tension that I am going to link below.

 

Frappas13

Member
Apr 7, 2021
5
0
TX
I think I FINALLY found it! On the far left and right of the trunk, the rubber stops have a screw around them. On the left side the screw was tightened all the way to the metal of the trunk and the vibrations were causing the screw to rub against the metal and make that "squeaking" noise (I could see a black ring around the screw where it had been rubbing). When I unscrewed it most of the way and did a really bumpy test drive I heard absolutely nothing. I'm thinking of grabbing the felt to place around it because with it loose it now "rattles" a little bit. I can deal with a tiny rattle until then though.

I'm very hopeful that was the issue, when I was adjusting the rubber stops it was making it better/worse. It wasn't until my wife was able to sit in the back and tell me which side that I was able to really find it.

Thanks so much guys, I'm crossing my fingers that my sanity is restored now!
 

Frappas13

Member
Apr 7, 2021
5
0
TX
Well I spoke too soon, noise came back with a vengeance today. I'm pretty sure it's nothing with the latch and rubber stops now. I would give the Sub/Amp solution a try but I'm not quite sure how to get to it to see if that's what's squeaking as well. I'll try looking up some videos.

SC wants to charge $200 just to take it back to diagnose because "they've already done a courtesy look at it earlier". :(
 

Luau26

Member
Mar 23, 2020
14
7
Los Angeles
I had the same noise, and did the following which solved all the squeaking noises I had in the back. I'm ranking them in difficulty/time order:

1) Adjust the bump stops on the rear trunk, so all 4 rubber feet on the trunk mates firmly with the rest stops.

2) Pull out all of the rear seat headrests, and lube the headrest steel posts lightly with white lithium grease etc. I personally used Krytox GPL205.

3) Pull up rear seat bench, and apply automotive felt tape on the steel tube bars that the seats snap into. The prevents the rubbing/squeaking sound of the bottom of the seat (styrofoam) against the tubes.

4) Rear cargo side trim and sub/amplifier, is what I consider the hardest as you will need to remove and dissemble quite a few pieces.
  • What I found is that the amplifier is screwed into the bare frame of the vehicle, and was squeaking when I tapped on it. I removed it and placed felt on all the contact points before screwing it back in. This solved all squeaking.
  • The plastic trim pieces on both rear and passenger/driver side are snapped into the body panels. However on my rear passenger side, one of the metal snap clips was not installed correctly from the factory, and was actually bent out of place and rubbing against the frame. A few plastic snaps were also mashed/bent. Installing this piece correctly is a major PITA, as you need to snap about 10 clips into their slots on the inner rear fender frame. So I don't doubt that there is a good chance that some of these are not installed correctly from the factory, so you potentially have metal/plastic tabs rubbing against the inner frame of the vehicle.
  • The problem area, as well as another poster who shared a very useful breakdown of how to take apart these trim pieces: Remove rear trunk trim
After doing all of the above, this has solved all squeaking/rubbing noises that I had in the rear of the vehicle. It took me a while to figure this out so I hope this is helpful in fixing your squeaks.
Thanks so much! I was able to do #4 and fixed the squeak from the amplifier. I bent the clip forward from where the amplifier hooked into the slot and placed get on the contact points.
For #3, did you take off the black plastic pieces over the seat hinge? I think that’s where my squeaks from the middle seat come from in my MY.

thanks
 

fr4c

Member
Jan 4, 2019
64
31
New Jersey
Thanks so much! I was able to do #4 and fixed the squeak from the amplifier. I bent the clip forward from where the amplifier hooked into the slot and placed get on the contact points.
For #3, did you take off the black plastic pieces over the seat hinge? I think that’s where my squeaks from the middle seat come from in my MY.

thanks
I did not, as those hinge covers wasn't an area of issue for me.
 

Frappas13

Member
Apr 7, 2021
5
0
TX
Thanks so much! I was able to do #4 and fixed the squeak from the amplifier. I bent the clip forward from where the amplifier hooked into the slot and placed get on the contact points.
For #3, did you take off the black plastic pieces over the seat hinge? I think that’s where my squeaks from the middle seat come from in my MY.

thanks
Welp I have ruled out 1-3 and the squeak persists. How did you guys remove the side pieces to get to the sub woofer? @fr4c ; Is that something easy but time consuming or do you really need to know what you're doing to get in there?
 
Last edited:

fr4c

Member
Jan 4, 2019
64
31
New Jersey
Welp I have ruled out 1-3 and the squeak persists. How did you guys remove the side pieces to get to the sub woofer? @fr4c ; Is that something easy but time consuming or do you really need to know what you're doing to get in there?
All of the pieces are held together by snap joints, clips, and push pins. If you take your time with it, I think it is pretty straight forward and just time consuming on your first go especially when you're trying to determine the areas that needs to be addressed. I think overall, it took me about 1.5 hours to do that area but YMMV.
 
Mar 26, 2021
5
10
US
Go to my long post here and scroll down to "Quarter Panels". You will need to take out some other pieces of trim first. See earlier in my long post for info on those. The post linked by fr4c is good too. These pieces are easy because they are just held in by clips and easy to get back in when you are done.

Removing the passenger side quarter panel (with the subwoofer behind it) is easier than removing the driver's side one because there are no cables to detach on the passenger side. Just pop the panel off and rotate it out.

As I say in my long post, do NOT unclip the quarter panels all the way up to the passenger seats, because the panels are very awkward to get back on when you are done. If your squeak is coming from behind there, rather than the subwoofer area, well, maybe we can put our heads together and figure something out.
 

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