Other Fuel System Problems of Hyundai Sonata - part 2

I took my car to dealer to repair recall. Dealer told me if it failed they would keep car and report stolen if I tried to take it. They failed it. I didn't trust them based on their report it stolen statement. I had the police get my car back. I took it to another dealer where it passed recall easily. I believe they wanted my car for a customer, and tried to get away with this ruse.

See all problems of the 2021 Hyundai Sonata 🔎.

I bought a 2018 Hyundai Sonata a few years back. No warranty. Used. 110,000 miles. A few short months after I purchased it, it stopped working. I took it back to the same dealership where I purchased it and they said they had to replace the coil packs and spark plugs and clean something in the engine out because there's a defect in the engine. I paid $500. Fast forward a few months later. Same thing happens. I take it to an auto repair shop because it's cheaper and the mechanic says he deals with these same issues with other customers who have similar year, make, and models. This pattern continues to this very day. It broke down while I was working my 2nd job. I have a daughter. She plays sports. I have a second job. I need this problem completely alleviated as quickly as possible. Like a lot of the american public, I don't have extra money to keep up with anything beyond the normal maintenance of my vehicle. I keep it up to date with all oil changes. What can you do to get me a vehicle I can trust and it not break down every couple months and cost $300-$600 each time? I don't have good credit (I'm working on that) I have medical issues that I have to visit my doctor for every 3 months. I have the loan through capital one and they don't offer refinancing. My father who has passed was a car salesman his entire career. I just need reliable transportation and if it's a motor problem like they say then I shouldn't be liable to fix it. The manufacturer should. Please let me know if you need any service records from me. Oh and I also have to put about $20 worth of oil in it every week or so between oil changes. My local oil change guys unfortunately know me very well.

See all problems of the 2018 Hyundai Sonata 🔎.

Engine was replaced in 2023. In March 2026 there was a fuel line leak to include fuel misting near heat components. The vehicle was in a fender bender but Hyundai determined this did not cause the leak which eludes to this being a faulty installation of the engine replacement associated with the recall. I’ve reviewed my 2023 engine replacement invoice. I see the service kits were used to transfer parts from my old engine, but the high-pressure fuel pipe (35340-2g710) is not listed. Per Hyundai's gdi service protocols and recall 180, that pipe is a one-time-use safety component that should not be reused during an engine swap due to fire risk. Since it is leaking now, it’s clear the old pipe was reused and has failed. I'm asked for a goodwill replacement because this was a procedural error during the 2023 warranty work and was denied. This is a safety issue.

See all problems of the 2013 Hyundai Sonata 🔎.

I was notified of a recall on my from vehicle by Hyundai via email some time in March of 2026. The message said mentioned my vehicle may have a defective/worn purge control check valve that would cause the fuel tank to deform. Potentially leading to a release of fuel over time, which then could ignite. Nhtsa recall #25v796000 my car showed now signs of problems, but I brought it into a Hyundai dealership on March 13th where they confirmed my vehicle had the issue. They said the situation required I not drive my vehicle and gave me a rental in the meantime. I assumed it would be a simple swap of the fuel tank and everything would be fine. I was offered a buyback from my Hyundai claims manager over the situation, but I figured since its a simple fix, I'd keep my car and have it fixed. Two weeks went by with no update from the dealership, so I walked in for answers. Turns out, the subframe of my car has been damaged by the expanding fuel tank and they are still waiting for updates from Hyundai on how to proceed as they themselves don't know how to fix my vehicle. My Hyundai claims manager did not mention this when we talked over the phone and he offered a buyback. None of their recall notices mention structural damage anywhere or even as a possibility. I asked the dealership again on April 1, 2026, and they are still waiting on guidance on how to proceed. Neither does my Hyundai claims manager handling this situation on their end.

This complaint is not related to the existing recall associated with this vehicle. The vehicle is experiencing a serious loss of power and acceleration issue. The car is unable to accelerate past approximately 60 mph. When pressing the accelerator fully, the vehicle does not respond or increase speed. While attempting to accelerate, the engine rpm increases and then suddenly drops repeatedly, causing the vehicle to struggle to maintain speed. This behavior is consistent and occurs during normal driving conditions. This creates a dangerous situation, especially when merging onto highways or attempting to accelerate in traffic, as the vehicle cannot respond when needed. The issue has occurred multiple times and makes the vehicle unsafe and unreliable to operate.

See all problems of the 2016 Hyundai Sonata 🔎.

The full stereo system with cameras and most sensors and the car is currently at the dealership as 03/09 @11:00 am and I took it to them as well so that they can repair the other pending recall I have at the moment and they stated that it was a " point to point check recall " and that they would change it whether it would need to be or not and I raised concerns about another possible recall on the car and if they could check it out which is my stereo system they tried to charge me almost $200 and " the symptoms or warnings " was that sometimes it would happen but instead of it going out completely I was able to troubleshoot it by pressing on the little button under the volume button.

See all problems of the 2022 Hyundai Sonata 🔎.

Nhtsa complaint statement subject: stop?drive recall – vehicle held since March 5, 2026 – no remedy, no transportation, buyback delayed I am filing a complaint regarding a stop?drive safety recall that has left me without access to my vehicle since March 5, 2026, and the manufacturer has not provided a timely remedy, transportation assistance, or a completed buyback. My vehicle has been at the dealership since March 5 due to a manufacturer-issued stop?drive recall. The dealership has confirmed they cannot legally release the vehicle because of the stop?drive order. The vehicle is not repairable at this time, and the manufacturer initiated a buyback process. However, the manufacturer has been extremely slow to communicate or complete the buyback. Despite multiple attempts to contact them, I have not received a clear timeline, and the process has stalled. I have also not been provided with a loaner vehicle or consistent rental reimbursement, even though the stop?drive order prevents me from using my car. Because of the delay, I am now facing financial hardship, including a past?due car loan on a vehicle I cannot legally drive and cannot retrieve. I am effectively without transportation and without a remedy. I am requesting NHTSA’s assistance because the manufacturer has not met its obligations to provide a timely remedy or adequate support for a stop?drive recall that has removed my vehicle from service for an extended period.

See all problems of the 2020 Hyundai Sonata 🔎.

Had an oil change, then 2 weeks later car making noise, checked the oil and it was completely empty, so we refilled the oil. Then a month after again same issue no oil, refilled it again and now a week later it's 2 quarts low already. Also when I come to a complete stop when it is time to go again it's very slow at going or if I try to excel it takes it a very long time to actually excel I think something's wrong with the fuel pump.

My 2016 Hyundai Sonata (VIN: [xxx]) has a serious safety issue involving excessive engine oil consumption. The vehicle loses oil rapidly between changes and requires frequent top?offs to avoid engine damage. This creates a risk of sudden engine failure while driving. The dealership, south charlotte Hyundai (10518 Cadillac street, pineville, nc 28134), refused to perform Hyundai’s official oil?consumption test. Instead, they told me to pay $750 for a combustion cleaning and stated it would not fix the underlying problem. They would not document the refusal or provide any testing. I contacted Hyundai corporate multiple times: • may 21, 2026 – executive office complaint submitted • June 3, 2026 – follow?up sent • June 29, 2026 – regional escalation sent my Hyundai case number is xxx. As of xxx Hyundai has not responded to any of my executive office or regional escalations. Only customer care replied with a template denial and no investigation. I have been waiting over two months with no action from Hyundai corporate. I am reporting this because the manufacturer has not addressed a safety?related defect, the dealership refused required testing, and the vehicle continues to consume oil abnormally. I am requesting NHTSA’s assistance in documenting this defect and Hyundai’s lack of response. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Sudden loss of acceleration. This occurred while making a left turn across traffic from a stop. At approximately 7mph the car would not accelerate any further. I was luckily able to coast the vehicle into a center turn lane. Upon coming to a stop I was unable to get any acceleration. The vehicle was turned off and turned back on again and operated normally. There were no trouble codes displayed.

See all problems of the 2024 Hyundai Sonata 🔎.

On 2/19/2026 while driving, my 2020 Hyundai Sonata limited 1. 6t began making several loud explosive / popping sounds. At the same time, the fuel gauge on the display screen appeared to rapidly drop, as if the vehicle was losing gas. Immediately following this, the vehicle began to hesitate and lose power while accelerating. The hesitation felt like the engine was misfiring or struggling to maintain consistent performance. There were multiple explosive sounds before and during the hesitation. This created a major safety concern while driving and the vehicle underwent an inspection at Hyundai in deland, FL. The service department was brief and stated they needed to keep the vehicle for repair for an unknown amount of time as the fuel tank expanded. No further information was provided at that time.

The internal core of the exhaust heat recovery system (ehrs), part of the center muffler/front pipe assembly (#28600-l5210), suffered a catastrophic failure. This allowed approximately 9 gallons of engine coolant to leak directly into the hot exhaust stream. Safety risk: this failure creates a severe visibility hazard. During acceleration from stop lights and stop signs, the vehicle emits massive, thick clouds of white glycol smoke. The smoke is so dense that it completely obscures the driver's view of trailing vehicles and prevents following drivers from seeing the roadway or my vehicle's brake lights, creating a high risk of rear-end collisions. Additionally, the rapid loss of coolant caused the engine to overheat and lose power while in motion, nearly causing a stall in active traffic. Confirmation: the failure was confirmed by the service department at washington Hyundai (invoice #174281). This is the second failure of this specific component (previously failed in Jan 2025). The manufacturer issued TSB 23-em-009h for this defect, acknowledging it affects 2020-2023 Sonata hybrids, but no safety recall has been issued. Symptoms: the issue was preceded by a "sweet" burning smell and a sudden "engine overheating" warning on the dashboard. The failed component has been replaced by the dealer, but the manufacturer refused to replace the coolant-poisoned oxygen (O2) sensors, leaving the vehicle in a technically compromised state. The failed unit is likely held by the dealer for warranty parts return.

Recall 286 my vehicle suffered from this causing heat module failure misfire in cylinder 2 and high pressure in gas tank. Sports Hyundai had previously done a 180 day repair under recall 9b1 for an expanded gas tank after the repair the car suffered from the updated recall 286 . I brang to the dealership 4 times with check engine and misfires and limp mode between 57k and 68k they refused to fix the car under recall 286 and cleared all the codes and continued to make me leave in a unsafe car. On February 14th it sport Hyundais negligence was the direct cause of an auto accident were the car was unable to move out the way because of lack of power /limp mode. I begged them in the final days of me having the car to fix it and saying I didn’t feel safe and they wouldn’t without an extensive amount of money I could not provide . I’m currently filing a claim with Hyundai consumer affairs and the dca in newark and also my senators office and I have a lawyer also who might help I wish to report this to the NHTSA.

See all problems of the 2023 Hyundai Sonata 🔎.

It was smoking from the engine, I immediately stopped the vehicle. My safety was put at risk immediately while being in the vehicle when the air bags deployed hitting me in the face and causing my face to swell. The safety of others was put at risk due to others being right next to me and putting others at risk of engine blowing up. Yes, the vehicle has been inspected by police. There were no warning signs on the vehicle.

Our 2022 Hyundai Sonata experienced multiple issues related to recalls affecting the vehicle’s reliability and operation. Due to these ongoing problems, the vehicle was taken to a dealership and has remained out of service and in dealership possession for approximately 90 days. The issues were confirmed by the dealership, and Hyundai motor America was involved in the case. As a result, Hyundai approved a full buyback of the vehicle, indicating the problems could not be resolved in a reasonable timeframe. Despite this, the vehicle remains out of service and unusable. Hyundai has failed to complete the buyback process and has not provided a resolution within a reasonable time. There have been repeated delays and missed timelines. The extended period without a functioning vehicle creates reliability concerns and potential safety risks, as the vehicle could not be safely depended on for regular use prior to being removed from service. The vehicle is currently still in dealership possession and unavailable for use.

Component/system failed: engine – connecting rod bearing failure consistent with Hyundai theta ii engine defect subject to federal recalls and consent orders. The vehicle previously received recall campaign 953 (ksds software update), intended to detect premature rod bearing wear. The engine is currently knocking and has been diagnosed as requiring replacement. The vehicle and engine are available for inspection upon request. Safety risk: rod bearing failure can cause sudden engine seizure or stall while driving, creating a significant crash risk due to loss of power steering and braking assist. Engine failure did occurr despite prior recall software update, indicating potential recall remedy ineffectiveness. Sudden stalling in traffic placed myself and others at risk of collision. Dealer confirmation: Hyundai of north charleston confirmed through warranty history a prior engine replacement request (PA) was submitted by a previous owner but denied. The recall repair was never performed. Current diagnostic findings indicate engine failure consistent with known recall defect. However, Hyundai has refused to perform further inspection or goodwill repair solely due to the vehicle’s salvage branding. Inspection history: the vehicle has been inspected by a Hyundai dealership. No engine replacement was completed. Hyundai customer care has updated case notes but is declining remedy based on title status rather than mechanical condition. Warning lamps/symptoms: the vehicle previously received ksds software update. Engine knocking developed consistent with rod bearing wear. The software did not provide effective prevention of engine failure. The engine now requires replacement. Hyundai is refusing recall-related remedy due to salvage title (predates my wonder ship by many years), despite federal recall obligations applying to the vehicle VIN. This complaint concerns potential failure of recall remedy effectiveness and denial of defect-related inspection.

See all problems of the 2015 Hyundai Sonata 🔎.

My 2013 Hyundai Sonata has a replacement 2. 0t theta ii engine. Recently, it developed a fuel leak that identically matches the description of Hyundai recall recall 22-01-047h (NHTSA #22v-312). I have attached a description of my fuel leak as assesed by a Hyundai dealership alongside a . Pdf of the NHTSA safety recall report to demonstrate that the issue is identical. Hyundai corporate is refusing to acknowledge that this is an identical issue and that my exact VIN group for 2013 Sonatas should be included in this recall. This issue represents a serious risk to life and property that Hyundai is refusing to officially address. They have refused to cover repairs for this issue. Additional info: my car has 124,047 miles on the odometer, but this replacement engine only has about 26,000 miles on it.

The vehicle developed a progressive engine failure beginning in early 2024, including loud knocking noises at cold start and visible white/gray/black exhaust smoke. The condition worsened over time. In February 2026, the failure escalated to active oil discharge from the exhaust pipe while the engine was running. Oil exiting through the exhaust indicates internal engine failure (such as piston rings, cylinder walls, or valve seal failure), not an external leak. This creates a safety risk including potential loss of power while driving, risk of engine seizure, and possible fire hazard due to oil in the exhaust system. The condition has been documented on video multiple times and was shown to dealership personnel. The vehicle was taken to a Hyundai dealership for evaluation and remains available for inspection. Despite this, no written diagnostic findings or repair determination have been provided. The issue has been persistent, progressive, and reproducible, and represents a potential defect affecting engine integrity and safe operation of the vehicle.

I have noticed puddles under/near rear side door/tire, the smell of gas after filling up tank. And a reduced mpg lower than normal with same driving habits.

My 2016 Hyundai Sonata (2. 0t/2. 4l engine) has been experiencing loss of motive power and severe engine stumbling at stoplights, creating an unreasonable risk of a crash in traffic. The check engine light is on with dtc p0010. Upon inspection, the internal oil seal plug at the intake camshaft e-cvvt has become unseated, causing an active oil leak. This matches the exact defect and symptoms (elevated idle of 1,200–1,400 rpm and power reduction) described in Hyundai service campaign tx3 (TSB 15-01-022-1). While that campaign only applied to 2015 models, my 2016 vehicle has suffered the identical failure. I am requesting that this safety-related defect be investigated for 2016 models to prevent potential engine fires from oil leaks or accidents from sudden power loss.

On I believe 1/14/26, my check engine light came on. Scheduled appt. For 1/16/26 for diagnostic. Several things were wrong. I decided to come back due to not having the money at the time. Over the wked, I remembered a recall notice I received around November that I asked about in November during my oil change & was told the parts aren't in & they'd give me a call. Upon viewing the recall it seemed some things I was told on 1/16/26 could be a result of the recall. I called my service person linda on 1/20/26, she spoke to her supervisor & they informed me some of the issues seem to stem from the recall. Linda gave me the manufacturer recall contact information. I contacted them on 1/20/26. She explained there was indeed a recall, there wasn't a remedy yet, it was safe to drive & if something changes, to call back. On 1/28/26 around 5:30am I left home for work & my car all of a sudden experienced a loss of power. It wouldn't go past 30mph. I returned back home & called out of work. I called the manufacturer recall & informed them. She made an appt. To take my car in the follow day, 1/29/26. I decided to drop it off that same day, 1/28/26. I had someone follow me being I could only go 30mph on a flat road & 10mph on a slight hill. I found out my service person linda was no longer employeed there. I spoke with another employee. He said they would have to do another diagnostic. I left my car. I called the dealership on 1/29/26 for an update, they had not looked at my car. I called the manufacturer recall, they assigned a case manger to my case. Jay from the nca, called me on 1/30/26 I believe. We've communicated several times without me receiving a adequate update. He's saying the issue seems to be steamed from the recall, there is now remedy yet, & they are still investigating. I've been without a car since 1/28/26, still making payments, missing work, haven't been offered a loaner & have no idea when or if I will get my car back.

I had recall 162 - engine replacement completed in 2024 , now I have fuel leak at high pressure fuel pump, the pump that is a component of the engine has now failed which was installed during the engine replacement which can cause a major fire.

See all problems of the 2014 Hyundai Sonata 🔎.

The gas tank is loose upon pumping gas it was found loose today the red mccombs dealership is the only service company who has performed service on vehicle.

See all problems of the 2025 Hyundai Sonata 🔎.

I took my car to the dealer on [xxx] with concerns about the strong gas smell that I have been smelling. The Hyundai dealership kept my car for 3 days and stated they could not smell the gas after driving the vehicle themselves. They did repair a cracked cylinder head however they did tell me that it wouldn't have been the cause of the fuel smell. They stated next time I am out driving, and I notice the smell to "pop" into the dealership to have it checked again. While this is good in theory, it is not something I am just able to do. I am [xxx], one of which is still in a car seat and unable to unbuckle themselves to get out if something terrible like a fire was to arise. This was the 2nd time taking my car in, as it was previously fixed in Feb 2025 due to another recall on the gas tank expanding. I do not feel safe transporting my children in a vehicle that is still reeking of gas and a possible hire hazard with no resolution. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I was driving my 2021 Hyundai Sonata at approximately 3:00 am when the vehicle suddenly began shaking and vibrating. While stopped at a traffic light, the check engine light illuminated, and the engine was shaking severely. I immediately pulled over and shut off the engine. After waiting approximately one hour, I restarted the vehicle, but it was only able to drive very slowly. The following day, the vehicle was towed to a local repair shop. Diagnostic testing showed a cylinder 3 misfire, along with evap system errors and faulty fuel injector issues. This failure occurred without warning and created a potential safety risk while driving. I am concerned this may be related to a defective fuel system.

I have taken my vehicle to a certified Hyundai dealership multiple times due to intermittent starting issues. The car will unlock remotely, and the lights and electrical components will turn on, but the engine will not start. When this happens, I press the ignition button to turn the vehicle off and then try again. Sometimes it eventually starts, but there have been several occasions when it would not start at all, forcing me to call for a tow or have the battery jumped. This issue occurs most often in cool or cold weather. I had a brand new battery installed at the dealership in July 2025, yet the problem has continued. I have been dealing with this for over a year and have even been stranded out of state in below-freezing temperatures. Each time I bring the vehicle in, the dealership states they are unable to replicate the issue while it is in their service department.

Recall number (25v796000) there is no remedy available. I am experiencing fuel system issues that may relate. Dealer and corporate refusing meaningful support and expecting me to pay $1,600 to replace fuel assembly. I feel unsafe driving my vehicle at this time.

I own a 2021 Hyundai Sonata 1. 6t, which has an open NHTSA safety recall (25v796000) related to fuel tank pressurization and fire risk. I brought the vehicle to an authorized Hyundai dealership due to a check engine light, reduced performance, and dtc p14ee, which aligns with the recall condition. The dealership refused to treat the concern as recall-related unless I paid a diagnostic fee and later attempted to reclassify the issue as a customer-pay fuel pump repair. During this visit, the dealership replaced a fuel system sensor without my authorization, which I did not approve or consent to. The dealership has not provided documented test results explaining how the recall condition was ruled out and has not documented recall inspection on the repair order. I expressed that I do not feel safe driving the vehicle due to the fuel system recall and drivability issues. The dealership also refused to provide alternate transportation. I am concerned the recall is not being handled in compliance with NHTSA requirements and that unauthorized repairs were performed while attempting to shift a recall-related condition to the customer. I am requesting review of recall handling and dealer compliance.

I brought this car 2022 Hyundai Sonata with 41k miles on it and only had it for 6 months. It has cut off 3x so far after putting gas in the tank. Always the same thing, OH nothing is wrong. Obviously there is and I see there is a recall on this car however my VIN isn’t coming up as a recall. This has to be fixed.

I started smelling a little gas in the 20th. And on the 21st it got a lot worse so I took it to the dealership. This is the same place that replaced the engine because it failed and it was a recall. I let them know of the recall and they said it is not covered. They told me it was the high-pressure fuel line that connects to the pump. I have provided a picture of what the tech said.

Hello sir/madam, while driving on interstate I-75 at approximately 70 mph, the yellow check engine warning light suddenly illuminated. Immediately afterward, the vehicle began to shake violently, lose engine power, and run extremely rough. The vehicle experienced a sudden loss of power, and pressing the accelerator pedal did not result in normal response or acceleration. The throttle input was significantly reduced, making it difficult to maintain speed and safely control the vehicle. At highway speed and in heavy highway traffic, if we had not been able to safely exit the roadway, this loss of control could have put not only the occupants of this vehicle but also other drivers at serious risk. Fortunately, we were already in the exit lane, and a mcdonald’s parking lot was located immediately off the exit. This allowed us to leave the highway quickly. Otherwise, this situation could have been extremely dangerous in active, heavy highway traffic. As the vehicle continued to shake, a strong smell of gasoline and a burning odor entered the cabin, raising concerns about a possible fire hazard. We safely stopped the vehicle in the mcdonald’s parking lot and then shut the engine off due to the severity of the symptoms. After shutting the vehicle off, we attempted to restart it, but the engine would not start. The vehicle had to be towed to a Hyundai service center for inspection. The Hyundai service center later confirmed that the failure was caused by a faulty fuel injector, and they have changed all 4 injectors as I attached receipt from Hyundai this failure created a serious safety risk due to sudden loss of engine power, reduced accelerator response, severe shaking at highway speed, and fuel and burning odors inside the cabin. Regards.

Subject: non-collision engine compartment fire - 2010 Hyundai Sonata (VIN: 5npeu4af3ah630796) ?"on Dec 19 2025, my 2010 Hyundai Sonata suffered a sudden, non-collision fire that originated in the engine compartment. While there are currently no 'open' recalls on this VIN, I am formally reporting this incident as it matches the failure patterns documented in NHTSA defect petition dp18-003 regarding non-crash fires in Hyundai/kia vehicles. ?preliminary inspection of the damage shows characteristic signs of a manufacturer defect, specifically potentially related to a connecting rod bearing failure leading to an engine block puncture and oil ignition, or an electrical short in the abs module—both of which have been subjects of major Hyundai fire investigations and class-action settlements (e. G. , engine ii settlement).

See all problems of the 2010 Hyundai Sonata 🔎.

My 2022 Sonata has had to have its fuel injectors replaced two times in the 3 years I've had it. On 12/18/2025 my car started to become very slow and could not reach over 20mph, and started to smell like gasoline and shake slightly. I had to get it towed to the Hyundai dealership and there they told me that the fuel injectors need replacing. I had the same exact problem with this car before where I had to get the car towed to Hyundai and then they had to replace the fuel injector.

My vehicle had Hyundai safety recall 227 (fuel tube replacement) completed on December 7, 2022. After the recall repair, the same fuel-system symptoms returned. A Hyundai dealership diagnosed failure of the high-pressure fuel pump and high-pressure fuel pipe and stated the condition was critical and a safety risk due to fuel system involvement and potential fire hazard. Hyundai motor America declined assistance, citing vehicle age and mileage, despite this being a recurring fuel-system safety issue following a recall repair. The vehicle continues to present fuel-related safety concerns, and operating the vehicle poses a potential fire risk. In addition, the estimated repair cost exceeds $2,000, which represents a significant financial hardship for a safety-related defect that occurred after a recall repair. I am submitting this complaint due to concern for vehicle safety and the recurrence of a fuel-system defect after a manufacturer safety recall.

Fuel line under the hood was spewing gas after starting the vehicle. My safety was put at risk by being stranded in a dangerous part of town for 5 days before getting the car towed back home no inspections have been done by those companies no warning light where on.