2023 Hyundai Tucson Engine Problems

Your car's engine misfired on all four cylinders while you were driving, which caused damage to the catalytic converter and all four fuel injectors. The engine warning light came on briefly before the car stopped running completely, leaving you stranded. The fix will require replacing the catalytic converter and all four fuel injectors, and diagnosing the underlying cause of the misfires.

The contact owns a 2023 Hyundai Tucson. The contact stated that while driving approximately 40 MHP, the vehicle suddenly lost motive power and stalled. The vehicle was towed to the local dealer who diagnosed an engine misfire in cylinder #3. The cylinder #3 was replaced and the vehicle was repaired. The vehicle later experienced the same failure and was towed to the dealer who diagnosed that cylinder #4 was faulty. The cylinder #4 was replaced and the vehicle was repaired. The contact stated that the manufacturer had issued a TSB for the failure that included all four cylinders were faulty. The failure mileage was 15,000.

Engine would not accelerate after stopping at a store. Limped home at 15 mph. Engine light came on a few miles from home. Vehicle would not stay running the next morning and had to be towed to dealership. Problem was an injector that the seal had failed on causing the engine to flood with gasoline. Dealership stated they had seen multiple injector failures and replacement parts now have a different part number implying the injector has been redesigned. Hyundai refused to replace the other injectors as they had not failed yet (they did replace the one that failed). I went ahead and paid to replace the other three. I live in Montana. If I had lost acceleration going up a steep incline or in heavy traffic or car engine failed to stay on in remote area in sub zero temperatures it could have had detrimental consequences.

The contact owns a 2023 Hyundai Tucson. The contact stated while driving 45 MPH, the oil warning light illuminated. The contact pulled over and checked the oil level and became aware that there was no oil in the engine. The contact added oil however, the failure recurred. The vehicle was towed to the dealer and the dealer confirmed that there was no oil in the engine however, the cause of the failure was not found. The vehicle was not repaired. The manufacturer was contacted and stated that an oil consumption test needed to be performed. The failure mileage was 49,000.

On 6/26/23 I was driving the Tucson. I was stopped at a light in traffic waiting for the light to change. Suddenly the icons on the dashboard turned red and started flashing. A message “Engine Off” displayed and the engine turned off. I was able to turn the vehicle back on and was able to drive. The automatic shut off of the engine while driving presents a safety risk.

The contact owns a 2023 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle hesitated to accelerate and then lost motive power. The check engine warning light was illuminated. Additionally, a fuel odor was detected while driving. The vehicle was able to be restarted, and the contact drove to a nearby gas station to park the vehicle. The vehicle was towed to the dealer; however, the vehicle was not yet diagnosed or repaired. The contact stated that the dealer had previously replaced two fuel injectors due to water in the fuel tank. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,000.

Two days after purchasing this vehicle BRAND NEW, I received a "Low Oil" alert. I took it to the nearest Hyundai dealership where a salesman filled the engine with oil. Only a couple hundred miles later I received another "Low Oil" alert. I have been attempting to solve this issue with Hyundai, however, they are insistent that I must complete an oil consumption test, which takes 3,000 miles of testing to complete. This vehicle is burning oil, and burning oil FAST. I do not know where the burnt oil is going, but if it is going through the exhaust system and catalytic converter this may be a FIRE HAZARD.