One problem related to oil pump has been reported for the 2014 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Hyundai Elantra based on all problems reported for the 2014 Elantra.
In Jan 2018 while driving my car a notice a knocking noise. I brought my car in for an oil change and ask about the noise they had told me that it maybe my oil pump. Never had any stalling problems as others had reported but did have a few times that it seemed like it did not want to shift until I let off the gas pedal. Brought car to dealer ship(rowe, auburn,me) to have it checked as it was still under the power train warranty. Left it there on Feb 5, 2018. They called me later that morning and told me that my engine needed to be replaced. Internal problem. Not sure what that means. So I asked if this was going to be covered 100% as it was still under warranty they said yes. So they put me in a loaner car. Checked back in at the end of the month and was told my engine was on national back order until possible may 2018. So here it is may 14, 2018 and still have not heard when I'll get my car back.