2022 Hyundai Tucson

September 15, 2024 while driving with cruise control set at 65mpg, the 2022 Hyundai Tucson began shaking and experienced an abrupt loss of power. I released the cruise control, and the vehicle wouldn't accelerate over 45 mph without shaking severely. September 16, 2024 car was inspected by a dealership and determined it was the 4th cylinder fuel injector; mileage on the vehicle was 45,314. Repairs were made per a TSB P030X. January 27, 2025, while driving with cruise control at 60mph, the same thing happened again. Managed to get the car to another dealership, only to find out all 4 fuel injectors needed to be replaced; this time with a TSB 25-FL-001H kit; mileage was 50181. Approximately March 11, 2025 car started the same issue, only this time there was no abrupt shaking or loss of power, however very strong smell of fumes. I refused to park the car in my garage, and immediately called Hyundai USA with all of this information from the start of these issues until current. The car was then taken to another dealership with mileage at 51332, only a difference of 1151 miles since last issue. This time all of the fuel injector seals are melted. Hyundai USA refuses to do anything about it. It was verified with the service technician this last time, that raw fuel was leaking onto the hot engine and could have resulted in the car catching on fire. The first two times this happened, I was out of state while being broken down.

Vehicle began shaking upon starting and was not accelerating properly. Engine light came on and a warning appeared on the LED screen to take care to dealer immediately. Upon inspection by the dealer, the problem was determined to be a faulty fuel injector (on Thursday 3/20). The part is NOT kept in stock at the dealer and was ordered from the warehouse for delivery the next day (Friday 3/21). I should have had the car repaired and returned to me by end of day 3/21 or next day, Saturday 3/22. I called after not receiving an update on Friday and was told the part is on BACKORDER. When the problem was diagnosed on 3/20, at the Hyundai dealer service department, the employee in the service department admitted that this was a common problem with the Tuscon and that no recall had been issued. He also said that the car is NOT DRIVABLE until the issue is fixed. A quick Google search showed that is very much a serious and common issue. I also appears that once one goes out, the rest will start to need to be replaced and are being done AS THEY BREAK, rather than replacing them all and/or fixing what is causing them to be faulty. I was told they have no idea when the parts will be ready. It clearly is a common problem if they do not have the parts readily available to fix my vehicle. In addition, he added it may take up to several weeks. The car just turned 3 years old and has 34,000 miles on it. I have NEVER had such a bad issue with any new care I have owned. There was absolutely no indication anything was wrong on prior drives before starting up the car. I had just driven it 260 miles to my daughter's college and back. Thank goodness it didn't happen on the busy highway or on one of the country roads in the middle of cornfields. The dealer service employee said the broken part would be "sent for inspection" once they have it off and a new part available.

Fuel injector failure. Sudden loss of engine power creates a major safety issue when traveling at speed on highways or especially busy interstate highways. Vehicle was towed to dealer and repaired under warranty promptly. This is a known issue with this and other Hyundai models and all four fuel injectors should be replaced. At present, Hyundai only authorizes one be replaced at a time as they malfunction.

2022 to hyundai tuscon now with the third cylinder misfire due to faulty fuel injector. This can be inspected upon request. Upon second occurrence, requested all cylinders be replaced and advised could not do this under warranty. Second filing to NHTSA. This incident put myself and other drivers at risk. I was driving on a highway and the cylinder misfire occurred resulting in check engine light and vehicle going into limp mode and inability to drive more than 30-40 mph. The entire vehicle violently shakes and loses power with this misfire. In the previous occurrences , could not accelerate beyond 20 mph. I could have been rear ended or caused a serious accident on the highway as a result of Hyundai faulty fuel injectors and cylinder misfires. My vehicle has now been seen 3x for the same issue and replaced by dealer. There were no warning signs prior to the failure of the fuel injector resulting in cylinder misfire and loss of power and inability to accelerate. This is a very dangerous faulty component of this year make and model- it is a known issue. Still no recall. I have a "new" car that puts me in danger every 4-6 months when I lose power in my vehicle with no warning or cause except from faulty parts. This faulty part is going to cause serious injuries/accidents if it is not addressed.

While driving on the highway, I attempted to accelerate up to 70 mph and the check engine light came on and the front end of the car started shaking. Had to pull over and restart the car to continue safely. This has happened four separate times at different mileage variables and each time they replace 2-3 of my fuel injectors with no explanation as to what is causing them to constantly blow. They never make it even 1000 miles before at least one goes out again. My vehicle is approaching 52,000 miles and has been serviced four times for this since December 2023. This needs to be a vehicle recall as the warranty will not pay for this forever and the underlying cause of the problem is not being addressed by Hyundai.

Lost acceleration while driving on the freeway and car started shaking with Check Engine light on. Took the car to the dealer for diagnostic and was informed that #4 injector failed causing the engine to misfire. This was the 3rd fuel injector failing in 5 months. Per my service advisor, Hyundai released an updated TSB (25-FL-001H) in January 2025 with a 4 new fuel injector replacement kit. Unfortunately, this injector kit was so new that I had to drive a service rental car for a week waiting for the kit to arrive. Let's see if these new fuel injectors will last longer than the old ones.