Two problems related to engine knocking noise have been reported for the 2017 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Hyundai Sonata based on all problems reported for the 2017 Sonata.
The contact owns a 2017 Hyundai Sonata. The contact stated while driving at 55 -60 mph, the vehicle was vibrating and the accelerator pedal was applied however the vehicle decelerated. There was an abnormal banging noise detected. There were no warning lights illuminated. The vehicle was taken to spokane Hyundai (8801 e sprague Ave, spokane valley, wa 99212; (509) 944-3600) where it was diagnosed that the engine needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 87,252.
While accelerating, especially up inclines, I would hear a knocking sound, feel vibrations, the check engine light would come on and the acceleration would not work. I would coast for a little bit (up to about a minute) before the acceleration would work again properly. This causes a very hazardous situation as other vehicle behind are still attempting to accelerate while I can not. This has happened to me at least 5 times in the last month and a half. The manufacturers service center that I took the vehicle to said that they couldn't reproduce the issue so there is "nothing wrong" with the vehicle.