2014 Hyundai Santa Fe engine problems

“We are the original owner of a 2014 Hyundai Santa Fe. The vehicle is experiencing issues from internal engine oil consumption caused by a manufacturing defect in the GDI powertrain. In 2023, while driving under normal operating conditions, the vehicle began severely jerking, shuddering and hesitating during acceleration. This hesitation and sudden drop in power creates a severe and immediate traffic hazard, as the vehicle loses acceleration capabilities unpredictably while driving, merging, entering a highway or crossing intersections. I have since experience low oil volume due to this systemic oil consumption. On April 7, 2023 while I was under the 100,000 mile factory warranty (at 99,644), the issues were reported to the dealership but they found no issues. Since then the engine light come up regularly and we must add or change oil soon. On June 15, 2026 we took it back with the same issue and we have been told after checking it and filling it up we must repeat the process from 2023, drive it for 1000 miles without changing or adding oil, even if it dries up. This will create a safety hazard not only for the public but for my family. Now we are told the…”

“My car was in shop for Smog inspection and failed. Mechanic told me that the most likely reason was that the engine has issues related to failing crankshaft position sensor which triggered the check engine light. He further explained that the engine with this condition will have abnormal oil consumption. My experience is that is exactly what I wondered. No smoke in the exhaust, no oil leaks under the hood and no oil on the parking space at home nor work. Mechanic recommended I take the car to Hyundai dealer in Folsom. The service department there diagnosed my car and did not find fault with crankshaft position sensor but did find that there is a problem with timing mechanisms. They also said that the engine has difficulty starting, which I never experienced in over 50,000 I have driven it, save the time of battery replacement about 2 years ago. I decided to take my car back to my mechanic where he diagnosed it with timing issues. The abnormal engine noise was accounted for as a link to timing. In the interim I drive a rental at the rate of about $65.00 /day. I m in a quandary; if my mechanic repairs the timing issues, which may not be under warranty, does that…”

“Driving to work at 0730 on 20 may, i put my foot down to accelerate from 40mph and nothing happened, i tried again thinking foot placement and the engine died. All ligjts went out, engine turned off and i free coasted for 100 -150yards. Once stopped i mangaed to get the hazard lights on, and get out the vehicle. I was 30yards from traffic lights on a 3 lane road. Once pushed from the road, the car showed lights and internal radio etc, but no noise on the push start. There was no noise from the engine prior to this, there was no dash lights showing issues and no warning. I was then towed 4hrs later to a garage where the diaognostics show engine failure and new engine required. A service 4000k miles ago and the car had used 5.5quarts of oil. All eveidence ive mainated the vehicle is online. 1st garage advices not driveable due to 10ks of miles of damage.”

“My engine failed and was diagnosed as needing to rebuilt or replaced by the dealership. During the pandemic it was hard to get parts so they rebuilt it. At first it was missed diagnosed because it was a 3.3l V6 and only the 4 cylinder engines were on recall. I had check engine lights on all the time. I paid for repairs that only masked the problem for a short time. It was such a problem I had to get a waiver to register my vehicle. After having more problems with my engine. Hyundai of Kennesaw confirmed my engine needed to be replaced they actually requested Corporate to approve an engine replacement for my vehicle in 2021. It was denied. So I paid for the rebuild. In August of 2025 i sent a letter extending the warranty which covered my vehicle engine rebuild. Hyundai denied that claim Jan 2026.”

“While driving at approximately 70MPH on the highway, my 2014 Hyundai Tucson Limited suddenly locked up with no warning lights, no noise and no prior symptoms. The engine completely seized, causing immediate loss of power. I was barely able to coast off the highway exit to a final stop on the feeder shoulder, in a desolate area. The vehicle has always been properly maintained and is in excellent condition. Upon research, I learned that Hyundai has known of internal engine defects caused by metallic debris left from manufacturing since 2010, which can cause bearing failure and engine seizure. My Tucson's failure matches the same pattern described in Hyundai's Theta II engine recall and warranty extension campaigns. This sudden failure created an extremely dangerous situation at highway speed and possibility of injury while being stranded on an open road. Many owners, myself included, were never properly notified of the risks. I am filing this report because this incident represents a serious safety defect and potential recurrence among similar vehicles that may not yet be covered by recall. I respectfully request that the National Highway Traffic Safety…”

“The engine has been running rough for awhile and emissions light came on. My car was having problems accelerating, 2 years ago the light came on but didn’t stay on so the dealer couldn’t diagnose problem.”