Three problems related to loud engine noise have been reported for the 2012 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Hyundai Elantra based on all problems reported for the 2012 Elantra.
Going 60 mph on freeway. Heard terrible noise and oil light went on. Pulled over. Oil was very low. Rod knocking. Towed to dealer where repairman said engine shot because of damaged bearing and sludge. Car still under original warranty: 2012 Hyundai Elantra, 1. 8 engine, 46,000 miles. Dealer refuses to contribute any money. Wants $6200 to repair with remanuf engine. Won't provide form estimate. Car cannot be safely driven. There were no previous warnings: no overheating, no oil lights, no noises. All dealer would do is remove valve cover and send pics which it says shows sludge.
Problem : esc light flashes while driving, some time makes rumbling noise , power loss, feel like car in neutral, steering felt lock, sudden break and creates unsafe condition. Not all symptoms come up same time but one of them while light flashing. Details : 1. First time happened in June/July 2015 contacted dealer. Since dealer cannot replicate they did test drive and felt everything normal. I drove 1 year scarred but issue didn't occurred 2. Few weeks ago this problem resurfaced dealer repeated same story but wanted to drive with me which is pending. While normal driving it happened and this time it was recorded on my cellphone to show as proof because in test drive it may or may not happen. I feel company and dealer not working closely and someone can cause serious issue of safety. I request to look into this reaching out to company and address this issue. I cannot upload video let me know if you need. Just loading a picture.
The contact owns a 2012 Hyundai Elantra. While driving at various speeds, the engine light remained illuminated. In addition, while driving 65 mph, the vehicle shook violently and made a loud noise each time it drove over a bump or pothole. The failure recurred numerous times. The vehicle was taken to a dealer and was repaired from a previous recall; however, the failure recurred. The contact received notification of NHTSA campaign number: 15v871000 (electronic stability control). The manufacturer was not notified of the failure. The approximate failure mileage was 61,828.