2022 Hyundai Santa Fe ENGINE,FUEL/PROPULSION SYSTEM

A few days before the complete engine failure the car became very jerky on the throttle response I would slowly add throttle and the car would jump all over the place with RPMs and felt extremely jerky when shifting gears. At one point the engine downshifted past redline when decelerating off the highway. The day of the engine failure I was accelerating up hill after leaving a stop sign. Around 25 mph the throttle stopped responding and the engine went to idle around 800 rpm. The car started violently shaking and sounding like it was running on 3 cylinders. I tried the throttle again and nothing happened. At this time I was slowing to a stop on the hill while still in lane being unable to get out of lane to the shoulder. Upon coming to a stop the vehicle continued to shake and eventually the engine stalled while keeping the electric on. At this point there was never any lights on the dash board to indicate a fault. Upon attempting to restart the engine it turned over 3 times and eventually started all while violating shaking and eventually stalling again. The third time attempting to start it did not turn over. At this point I was stuck in lane and needed to call the police to come and assist me because I was unable to move the vehicle under its own power putting my life in danger. Upon taking getting it towed to a dealership they said it was a fuel injector fault.

Was traveling on [XXX] near Reston, VA when the Santa Fe engine started missing and losing power and check engine light came on. Vehicle was towed to dealer and repaired on 04/26/24 Mileage was 36285. The repair order says it was fuel injector for cylinder #1. The second time the same thing happened was on [XXX] near Haymarket, VA. The date was [XXX], mileage was 36577. The engine started missing lost power and check engine light came on. Vehicle taken to dealer for repaired. They replaced injector #2. The third time was about [XXX] mileage about 51000. Was traveling near Haymarket, VA. Engine started to miss, decrease in power, check engine light came on. Vehicle was towed to dealer. Inspection of the engine revealed injector #3 was malfunctioning and they needed to replace it but could not get the injector for it from Hyundai. The vehicle has been setting at the dealer since then with no idea when it will be repaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Was driving on the highway while it was in cruise control and on several occasions when trying to accelerate the vehicle would jerk aggressively and struggle to accelerate. It did this about 3 times on my way to my destination. Took it in and they said they couldn’t find anything wrong with it nor could they replicate the issue. No work was on done on it.

The car has been taken to the dealer multiple times for not accelerating out of 1st gear when starting up, and also for shuddering at high speeds. We have been stranded, hundreds of miles from home on 2 occasions, first with less than 30,000 miles because the spark plugs needed to be replaced. And the second occasion, also hundreds of miles from home, because the car failed on the highway and limped into a dealership, where one of the fuel injectors was replaced at approx 50,000 miles. The mechanic at this dealership voiced his concerns that these were the original fuel injectors, He said he was aware of the problem, but was only permitted to replace one of the fuel injectors. The car continues to shudder at occasionally, and refuses to shift out of 1st gear at odd times. We have tried to get Hyundai to replace the fuel injectors, but they refuse. I would like this to be serve as a record of our problems so that others can be aware of a problem that exists with these cars. This is a safety issue, as if the car will not accelerate on a highway or crossing a road, it is possible to have an accident. Also, having the car fail on a remote highway is also a safety issue.

Vehicle check engine light came On while driving and vehicle began misfiring. Vehicle was in the shop and injector was found defective. Vehicle again had same issue but intermittently and wife would have to pull over and shut down the car to be able to drive it safely home. Dealership tried blaming bad gas which was purchased a mile from dealership. Within 50 miles vehicle began acting the exact same way and Hyundai dealership says injector needs replaced but blaming contamination not a known issue Hyundai has with injectors. Found multiple instances of same issue and same made up issue of contaminated gasoline even at the same dealership I went to. Faulty injectors make the vehicle unsafe when traveling at highway speeds on busy highways.

I have experienced power loss soon after I bought the car in Dec 2021. While I was driving the car was going in a constant speed of 20 to 30 mph. However hard I pressed the gas, car felt not responsive. Reported this to the service center and was advised that this may be since car is learning my driving habit. Later in december 2022, received a recall 236 letter from hyundai which was mentioning an issue similar to the one I experienced. Took the car for recall and informed me that the software upgrade is done as per manufacturer recommendations. Now on March 28th 2023 while I took the car out in the morning, there was more smoke than usual. And the same issue happened again. The car was not going beyond 20 to 30 mph for around 6 miles. Reported the same to the nearest service center and booked an appointment after 2 weeks . Also sent a complaint to hyundai motors directly