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bpaps, This is an update to my issue to you and others on this thread - went to Kia service a second time yesterday and went for a test drive with yet another service advisor and confirmed the noise in the rear suspension. After a brief conference they agreed that it might be a bad shock, and took the car in. Their mechanic removed the shock and said (per service report) "Shock is blown and you can hear the liquid in the cylinder" and mentioned "it doesn't feel right". The catch is they had to order and Fedex a new shock absorber for the rear, because apparently there is only a small handful of these in the country that are available, due to the fact that the car is so new. Not sure why they can't use a new one from an older model. So now I'm waiting for delivery and installation, and hopefully that's the end of it.

In your case, could be a bad shock as well, have them check it out. Might be a bad batch of shocks out there, and make sure they report it to corporate. As for for your brake pedal, sounds like something is out of adjustment between the brake pedal mechanism and master cylinder. Take it back to them, might take a couple of tries. It also helps if you get several people involved, including the sales rep that sold it to you. I'm on a first-name basis with 7 people now. Good luck.
I have a 2025 same noise right from day one, already had it back at the dealer and the heard nothing, am screen shot g these post to show it’s a wide ranging problem from the southern US to Kanata Ontario Canada, will keep you posted
 
Discussion starter · #23 ·
I have a 2025 same noise right from day one, already had it back at the dealer and the heard nothing, am screen shot g these post to show it’s a wide ranging problem from the southern US to Kanata Ontario Canada, will keep you posted
Yes, same here. I suggest you do the same thing I did, get them to go on a test drive with the advisor sitting in the back seat behind you and tell them to listen carefully. Drive over known bumpy roads that produce the noise. Might take a couple of visits until they’re no longer mysteriously deaf lol.
 
Dropped off my Sorento today, the advisor listened carefully to my complaints and told me it may take 2 weeks for a resolution if anything comes back needing parts. They provided an Sorento S as a loaner.

-Regarding the dull clunking in the rear right side:
The advisor said he'll look for loose parts, loose spare tire, blown shocks, etc. I was please with that explanation until I rode the S trim they gave me... same issue as mine, same dull clunking coming from the same area. I do hope they can fix mine but at this point I'm starting to think I just need to learn how to ignore it...
-The dead spot in my break pedal:
He tried it for a few minutes, played around with it, promised to do a comprehensive diagnosis and then processed to explain that all the Sorentos he has tried have the break pedal behavior... I got to try 2 Sorentos, my S trim loaner and another SX trim. Felt a bit tighter than mine but that could have been me on denial because after 100 miles in a day I feel the same thing in my loaner.

I do hope they fix it though.
 
Dropped off my Sorento today, the advisor listened carefully to my complaints and told me it may take 2 weeks for a resolution if anything comes back needing parts. They provided an Sorento S as a loaner.

-Regarding the dull clunking in the rear right side:
The advisor said he'll look for loose parts, loose spare tire, blown shocks, etc. I was please with that explanation until I rode the S trim they gave me... same issue as mine, same dull clunking coming from the same area. I do hope they can fix mine but at this point I'm starting to think I just need to learn how to ignore it...
-The dead spot in my break pedal:
He tried it for a few minutes, played around with it, promised to do a comprehensive diagnosis and then processed to explain that all the Sorentos he has tried have the break pedal behavior... I got to try 2 Sorentos, my S trim loaner and another SX trim. Felt a bit tighter than mine but that could have been me on denial because after 100 miles in a day I feel the same thing in my loaner.

I do hope they fix it though.
My 2025 goes back next Thursday, fingers crossed, if they don’t do anything I will do it myself and deliver there poor absorber :) we have a 2021 Santa Fe and my daughter has a 2023 Sorento EX Plus, rear shocks look identical, both those vehicles are nice and quiet.

Mod: Edit your own posts.
 
Discussion starter · #27 ·
My 2025 goes back next Thursday, fingers crossed, if they don’t do anything I will do it myself and deliver there poor absorber :) we have a 2021 Santa Fe and my daughter has a 2023 Sorento EX Plus, rear shocks look identical, both those vehicles are nice and quiet.

Mod: Edit your own posts.
Good luck, if you find a source for those shocks, let us know😁 Currently waiting for a new one to arrive, but now we have a dockworker’s strike going on, hopefully the shipment got here and not stuck on a offshore ship. On top of this, the southeast states got hit with hurricane Helene, KIA’s assembly plant in Georgia might be compromised. Gonna check on ETA again.
 
Dropped off my Sorento today, the advisor listened carefully to my complaints and told me it may take 2 weeks for a resolution if anything comes back needing parts. They provided an Sorento S as a loaner.

-Regarding the dull clunking in the rear right side:
The advisor said he'll look for loose parts, loose spare tire, blown shocks, etc. I was please with that explanation until I rode the S trim they gave me... same issue as mine, same dull clunking coming from the same area. I do hope they can fix mine but at this point I'm starting to think I just need to learn how to ignore it...
-The dead spot in my break pedal:
He tried it for a few minutes, played around with it, promised to do a comprehensive diagnosis and then processed to explain that all the Sorentos he has tried have the break pedal behavior... I got to try 2 Sorentos, my S trim loaner and another SX trim. Felt a bit tighter than mine but that could have been me on denial because after 100 miles in a day I feel the same thing in my loaner.

I do hope they fix it though.
Good morning community!

Update.
My Kia advisor called me at 7:30am -loved he called that early- said that he felt/heard the dull clunking coming from the passenger rear area. This guy is not deaf, I was surprised!
The advisor said: I submitted an order for the shock absorber, 2 sentences later he said: I am going to submit an order for the shock absorber :unsure: I was hesitant for a bit but decided to believe him -he has no reason to lie, I hope-
The advisor didn't mentioned anything about the parts not being in stock, or comming from Korea, didn't even mentioned the strike or anything ETA/TAT related.

Anyhow, I'll keep you posted and hopefully we are collectively a step closer to determine if the shock is what's causing the issue for some/most of us.
 
Discussion starter · #29 ·
Good morning community!

Update.
My Kia advisor called me at 7:30am -loved he called that early- said that he felt/heard the dull clunking coming from the passenger rear area. Tbis guy is nit deaf, I was surprised!
The advisor said: I submitted an order for the shock absorber, 2 sentences later he said: I am going to submit an order for the shock absorber :unsure: I was hesitant for a bit but decided to believe him -he has no reason to lie, I hope-
The advisor didn't mentioned anything about the parts not being in stock, or comming from Korea, didn't even mentioned the strike or anything ETA/TAT related.

Anyhow, I'll keep you posted and hopefully we are collectively a step closer to determine if the shock is what's causing the issue for some/most of us.
That’s good news, check with someone in the parts department about the ETA for that part. The service advisors have no idea, they just put in the request. Apparently the dockworkers strike is over for now, so I’m hopeful the shocks arrive soon for us.
 
Hello everyone, new to the forum, hope I can find an answer.

Recently purchased a new 2025 Sorento, S trim, and very happy with the car. But there is an annoying sound coming from the rear suspension from the passenger side. The noise is best described as a “flumping” or soft clunking from under the car near the right rear suspension, under the rear seat, when the car travels over bumps in the road during city driving. Almost sounds like something is softly bouncing up and down against the bottom of the car. I did a visual inspection under the car and did not see anything out of the ordinary, also checked the rear seat mounts, removed the spare tire jack, rear lift gate is solid, etc. The exhaust mounts are intact and solid, and is not interfering with suspension or floor board. I suspect a bad shock or insulator, as it seems to happen when the rear wheel returns from upward travel.

I brought it back to Kia’s service center here in Cleveland, OH and had a service advisor take a ride, and she acknowledged that it was making noise. She also discovered that the tires were overinflated to 50 psi from the factory. Apparently the car wasn’t pre-checked and inspected before the sale (it only had 4 miles on it) They kept it overnight and I assumed they were working on it, but in reality I think they simply deflated the tires and forgot to tell me pick it up. The service advisor told me they looked at it and didn’t hear anything during a road test (probably thru the parking lot, lol).

Anyway, the noise is still there, perhaps not quite as loud before. I plan to bring it back after a trip to get it checked again. Is there anyone out there that has had similar problems with a new or recent year Sorento? Any clues would be greatly appreciated, and thank you.
Took my 2025 in today and dealer agreed it was the right rear shock, ordered one, will keep you posted.
 
Discussion starter · #33 ·
Did you get a loaner?
The loaner i got has the same issue 😤
Beginning to think that this noise is simply a characteristic of this model due to bad design lol

To bpaps, Kball and others on this thread, they finally received the new shock and installed it today, but unfortunately the noise is still there. I called the service advisor back and reported it, and told her to please check other new vehicles for the same noise since she knows what it sounds like, and to check any service bulletins that may indicate something. She said she would talk to the manager, but never called back as to what to do next. I don't think the new shock is defective, but who knows, could be bad design. I think I'll have them check the wheel assembly next, crazy as it sounds, I think they swapped out the shock without removing the wheel (no tool marks). Otherwise, it may be just the way that model sounds, dunno. I'm at a loss as to what to look for next. Again, any clues would be greatly appreciated.
 
To bpaps, Kball and others on this thread, they finally received the new shock and installed it today, but unfortunately the noise is still there. I called the service advisor back and reported it, and told her to please check other new vehicles for the same noise since she knows what it sounds like, and to check any service bulletins that may indicate something. She said she would talk to the manager, but never called back as to what to do next. I don't think the new shock is defective, but who knows, could be bad design. I think I'll have them check the wheel assembly next, crazy as it sounds, I think they swapped out the shock without removing the wheel (no tool marks). Otherwise, it may be just the way that model sounds, dunno. I'm at a loss as to what to look for next. Again, any clues would be greatly appreciated.
As I wrote before I also had my shock replaced a year ago (I had to pay for it as the car was older than 2 years) and the noise got better but after some time it came back to the same level. After that they have replaced 3 parts on the top part of the shock where it connects to the chassis. Noise is still there. As next step all the interior of the trunk was removed and checked for loose parts but no improvement.
I have a feeiling that it is worse in hot weather and better in wet conditions. I assume it is some lubrication of some parts. I was suspecting the stabilizer joints. The metal holder with a rubber inside but I am not sure. It would be good to grease all the related parts one by one and make a test drive after each step to find outy where the noise is coming from.
KIA should have done it themselves but for me they told me that they cannot do any further actions, they are out of ideas.
 
As I wrote before I also had my shock replaced a year ago (I had to pay for it as the car was older than 2 years) and the noise got better but after some time it came back to the same level. After that they have replaced 3 parts on the top part of the shock where it connects to the chassis. Noise is still there. As next step all the interior of the trunk was removed and checked for loose parts but no improvement.
I have a feeiling that it is worse in hot weather and better in wet conditions. I assume it is some lubrication of some parts. I was suspecting the stabilizer joints. The metal holder with a rubber inside but I am not sure. It would be good to grease all the related parts one by one and make a test drive after each step to find outy where the noise is coming from.
KIA should have done it themselves but for me they told me that they cannot do any further actions, they are out of ideas.
Wouldn't this make it a lemon?
My 2022 Sorento which is basically identical, with th exception of the headlights and dashboard, doesn't make that noise.
Could this be an insulation problem? Is that even the appropriate terminology for cars? I just can't believe that all the cars are having the same issue and only a handful of us are talking about it...
Do you guys feel the break pedal dead spot? They are working on that too but I expect nothing from them since I can feel the same thing in the 2024 loaner. And again, I don't feel that in my 2022.
Such beautiful car but at this point I just want out of the lease but I doubt they'll allow me to do that.
 
Wouldn't this make it a lemon?
My 2022 Sorento which is basically identical, with th exception of the headlights and dashboard, doesn't make that noise.
Could this be an insulation problem? Is that even the appropriate terminology for cars? I just can't believe that all the cars are having the same issue and only a handful of us are talking about it...
Do you guys feel the break pedal dead spot? They are working on that too but I expect nothing from them since I can feel the same thing in the 2024 loaner. And again, I don't feel that in my 2022.
Such beautiful car but at this point I just want out of the lease but I doubt they'll allow me to do that.
Unfortunately we don't have lemon law here in Hungary.
 
As I wrote before I also had my shock replaced a year ago (I had to pay for it as the car was older than 2 years) and the noise got better but after some time it came back to the same level. After that they have replaced 3 parts on the top part of the shock where it connects to the chassis. Noise is still there. As next step all the interior of the trunk was removed and checked for loose parts but no improvement.
I have a feeiling that it is worse in hot weather and better in wet conditions. I assume it is some lubrication of some parts. I was suspecting the stabilizer joints. The metal holder with a rubber inside but I am not sure. It would be good to grease all the related parts one by one and make a test drive after each step to find outy where the noise is coming from.
KIA should have done it themselves but for me they told me that they cannot do any further actions, they are out of ideas.
Our 2025 Sorento is definitely louder (road noise) than our 2021 Santa Fe , Santa Fe is 18” wheels, Khumo Tires, Sorento is 20” Continentals, 18” are definitely quiter
 
Discussion starter · #38 ·
As I wrote before I also had my shock replaced a year ago (I had to pay for it as the car was older than 2 years) and the noise got better but after some time it came back to the same level. After that they have replaced 3 parts on the top part of the shock where it connects to the chassis. Noise is still there. As next step all the interior of the trunk was removed and checked for loose parts but no improvement.
I have a feeiling that it is worse in hot weather and better in wet conditions. I assume it is some lubrication of some parts. I was suspecting the stabilizer joints. The metal holder with a rubber inside but I am not sure. It would be good to grease all the related parts one by one and make a test drive after each step to find outy where the noise is coming from.
KIA should have done it themselves but for me they told me that they cannot do any further actions, they are out of ideas.
Yes, I'm thinking my next step would be to check the wheel assembly (caliper, hub), stabilizer bar bushings, and stabilizer end link. I don't believe it's anything to do with the control arms, unless it's something to do with the wheel alignment cam. Beginning to think it's just a characteristic of these cars, it seems to be always on the side where the exhaust is. My step-daughter has a Hyundai suv and she claims it makes a similar sound in back.
 
Discussion starter · #39 ·
Our 2025 Sorento is definitely louder (road noise) than our 2021 Santa Fe , Santa Fe is 18” wheels, Khumo Tires, Sorento is 20” Continentals, 18” are definitely quiter
Same here, what surprised me is the amount of wind noise around the side view mirror due to design. I can live with that, the strange noise in back is a distraction because I keep listening for it lol:)
 
Hi I have 2022 EX hybrid and noise from right back side starts two weeks ago decided to lift car check don’t see anything wrong when put back on tires slowly, noise coming. When drive two times make noise even on highway but now only if I turn or go on speed bumps or any cain road imperfections.
 
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