general problems of the 2018 Hyundai Elantra

The car keeps lagging on acceleration I had the throttle body checked and cleaned and they said it was fine I have been doing all maintenance required by manufacturer, but sometimes is lacking on the power loses acceleration, I see these model has a recall but when I entered my VIN number doesn't show up so I am concerned why is not covered as it could lead to my car been stalled in the middle of the highway, dealer wants 300 dollars just to take it in and usually they can't reproduce the issue , what should I do in this case, I dont want to wait until I have an accident for this to be checked thank you.

Fuel injectors failed at 43,000 miles and 66,000 miles with no warning. Car misfired and left me stranded.

Initial fault code: p0303 replaced all 4 spark plugs and all 4 ignition coils. The check engine light extinguished momentarily but returned, logging p0303 and a new p0301 replaced all 4 fuel injectors. Cel extinguished momentarily and then returned, logging p0303. Replaced the entire engine electrical harness. Concurrently, all related electrical components and connectors were meticulously cleaned with professional contact cleaner. Cel extinguished for significantly longer period of time, and then returned, re-logging p0303 and p0301. Thid suggested the ecu was "handshaking" with new components but re-logging the fault upon detecting the persistent core issue. A full compression test was performed. All cylinders reported results within specification. Using a borescope I inspected cylinder walls in piston tops. There was significant carbon residue buildup but nothing out of the ordinary for similar gdi engines. I still performed a pea gdi specific chemical cleaning. It was a a little smoother afterwards, but the misfire persisted and cel remained on. I also removed, cleaned, and tested common sensor faults, with no result. Also p0128 code and no start / electrical drain, and engine light started flashing numerous occasions had to stop the vehicle. I tried swapping the coils, but all that proved was that the coil was good, I did a power and ground test, it passed the connector had 12 plus volt power and a perfect resistance to static ground. The signal wire from the coil connector had perfect continuity to the ecu but had ol to chassis ground showing there was no short. A test light was used to see if anything was coming from the signal wire to the ignition coil and that test failed, there was no signal pulse. The diagnostic process has definitively proven a component-level failure inside the engine control unit. See attached file for more detailed information.

Had to do 3 oil changes in a month had to change ignition coil that had been changed a month ago spark plugs were completely covered in oil was driving and it literally just stopped every time the oil would be checked it wouldn't be any on the dipstick.

While driving vehicle the black nylon fuel line started spraying fuel over the top of the hot engine. At highway speed the passenger compartment filled up with gasoline fumes. Pulled over to open the hood and saw fuel streaming from the fuel line on top of engine. Vehicle was shut down, and aaa towing called to tow vehicle 85 miles from staugustine FL, to gainesville florida to Hyundai dealership of gainesville. The vehicle has been in the shop on [xxx], for repairs. This vehicle only has 44000 miles on it. Hyundai states that they don’t have the fuel line in the USA and had to order the part from korea. I was stranded 352 miles from my home. I called Hyundai corporate to notify them of this issue with the defective fuel line. They said there is no recall on this part, and not covered under the 10 year 100,000 mile warranty. They told me it’s going to cost me $1124. 26 for the repair. I almost lost my life potentially being barbecued in this vehicle, not to mention other innocent people getting hurt. I have owned many cars in my lifetime and this is the most dangerous vehicle I ever had. Potential to explode and catch fire while driving on expressway. I think NHTSA should look into this vehicles safety before other innocent people get killed. An extremely dangerous road hazard. Note this vehicle only has 44,000 miles and is maintained properly. Hyundai doesn’t care about safety, and their customers. When I purchased this vehicle they told me how safe it was and the best auto warranty in the world. Please look into this fuel line defect before someone gets severely injured or killed by fire. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Fuel line on top of engine cracked spraying fuel on top of hot file:///var/mobile/library/sms/attachments/1f/15/4dc59d25-4f9e-41e5-a17e-a14f53b29de4/img_6793. Mov.

This has happened a couple of times where in the middle of driving, my car automatically shuts off, I can not turn my steering wheel I can not push the brakes, everything stops working. I have to wait till my car comes to a complete stop on its own, put the car in park, turn off the ignition, turn my keys and start my car again. Then it sometimes acts like there is no power to accelerate when I'm at a full stop. Rpms go crazy, but acceleration doesn't occur. No warnings have ever come up. I received an notice about a recall, but it's for 2019 Elantra and up. Mine is a 2018, but the issues for that recall is the same thing that is happening with my car. This is dangerous and can lead to serious repercussions or even death. Something needs to be done to fix this. I don't not have thousands of dollars to pay for an issue with the manufacturer.

I had to replace my Cadillac converter twice and it keeps messing up on my car and I have to keep replacing my headlight bulbs on my vehicle. They keep going bad and the vehicle tells me when the headlight bulbs is out, but I don’t replace the headlight bulbs, four times and the catalytic converter three times and my blindspot detection system and rear across traffic alert system keeps going out on my car and I done replaced it and recalibrated it six times already and there should be recalls for all this on the vehicle and my license plate lights keep blowing out on my car and placed those seven times all this need to be recalled for 2018 Hyundai Elantra and there is loud clicking noises from the steering wheel when I turn left to right on 2018 Hyundai Elantra that also needs to be recalled that’s a safety issue and I replaced my brakes six times and the rotors on my 2018 Hyundai Elantra and this is a big safety issue that needs to be recalled so they can get fixed so the customer owner, don’t have to keep pay for it.

In early may 2023 I was driving my 2018 Elantra vehicle on the expressway. I had hot an area where there was traffic and had to slow down and move along with the speeds everyone else was going. When I slowed down my engine quit. Everything turned off and the car was stalled. I was able to turn the car back on and start the engine but there was a loud knocking sound coming from the engine and when applying my foot on the gas it wasn't going anywhere. It stalled in traffic again. I put it in park, and restarted it and got enough gas for it to move and get off the main road. I called a tow company and had a certified mechanic take apart the engine $600 and inform me the engine was shot. The car had maybe 80,000 miles on it. I had no idea what to do. The car sat at the repair shop for several weeks while I figured out what to do. I had it towed to a Hyundai dealership and had them look at it. They told me that there was no recall and that since I wasn't the original owner their powertrain warrenty was not valid. They did their diagnosis, another $300 just for them to tell me the same thing the other mechanics told me, the engine was shot and needed to be replaced. They put together a list of items that needed to be replaced and repaired and it came out to over $17,000 and Hyundai would do nothing for me. A vehicle with less than 80,000 that's engine fails is a recall in my book. It's now been over 2 years and I continue to pay for a car I cannot drive, and Hyundai still doesn't accept responsibility. This is a faulty car and would never recommend to anyone. Look at all the complaints regarding the engine and powertrain, obviously this is an issue. Hyundai needs to acknowledge this and replace these failing engines. Maybe by the time I'm done paying this car off they will take responsibility and the NHTSA will fully support the individuals that are owed a vehicle or engine replacement.

Financed last year (2021) at 38,000 miles, financing a vehicle I wish I knew to do research before hestitly excepting my first offer, first waring was on the test drive. The car had to be towed back to dealership because the battery was dead. In the sub-zero cold, the battery with read low and this causes electrical issues, from remote start not working to unable to open the doors. The more common and reaccuring issue that is getting worst is the lack of excellaration when taking off. Realizing this drastic difference recently, I know there is some thing happening, but I have not had much good customer service when I have brought issues to dealership and services center. Also issues with harness for the back left lights. The harness that holds the bulb keeps burning out. Dealer has never fixed when I immediately experience this issue and they just replaced the bulb twice until they realized the real problem and told me it would cost me $160.

Unknown - for the past several months, since my car hit the 70,000 mileage mark, my check engine light has come on while experiencing hard idling, delayed acceleration/power while driving - particularly on gradual inclines and hilly roads. I would suspect it has something to do with the power or fuel system. I have changed oil twice and had a diagnostic test done and mechanic is unable to pinpoint issue since it is not consistent.

At slow speeds car just shuts off engine. Starts back up but does it constantly. Also the engine lifters are starting to make noises like a clacking someone said it was a defective motor.

Engine stalls while driving. No warning, intermitted full shut down of the engine. Can happen multiple times in a row, only making it a few hundred feet before stalling again. The only remedy is to put the car in park and start the engine again, however, that is not always easy to do when on the road, and the car can only drift and brake. It is not safe when the car stalls, especially in traffic -- can be dangerous to myself and others on the road if I am unable to pull the car over or get it to start up again on the interstate. I have been to a mechanic, and 2 dealerships who claim they cannot replicate the problem, and even when it stalled in the parking lot when I was leaving, there were no error codes on the computer. This being said, without a code or a proper diagnosis, I am at a standstill because "nothing can be done or authorized' by Hyundai without a code. I have been suggested by both dealerships to try and run it and 'kill the engine' because it is still under warranty for another 15,000 miles--but this puts myself and other drivers at risk because the car is unsafe to drive. There is a code from July 16, 2020, a little less than 2 months before I purchased the car about an engine light, this has yet to be addressed. This problem appeared out of nowhere one day while driving on the interstate and has been an issue ever since.

When I put the nozzle to pump gas, the pump shuts off and clicks as if the tank is full. I have to twist the pump in one specific position and place it about 3/4th of the way in. Sometimes I have had to leave and go to a different gas station if the accordian plastic part of the nozzle is long. It just clicks and shuts off the pump. This happened from the day I first got the car, got gas and never ceases.

Passenger seat air bag indicator flashes and warning sound indicates seat belt is not buckled when nobody is in the seat. When accelerating, there are multiple hesitations where the car feels like it is in park or neutral. After about 15-30 seconds, the car starts accelerating normally.

Takata recall my vehicle brake got stuck while I was driving on the highway. The car also released a gas/oil odor when the car has been running. The car has also been having problems to start need to attempt to turn on vehicle twice before it actually starts. Brakes have malfunctioned multiple times already and could have caused an accident.

After a full stop and you press on the gas to move, at times there is a pause of perhaps 5 seconds before you can start to move into traffic.