Wasn't 2013 the worst model year for 2.4 engine failures...ie.... rod bearings? You need to investigate this further on the internet. Google search, consumer complaints and other Kia/Hyundai forums may help. Then decide what direction is next.
Hello.I saw this while l was looking to see what was wrong with the A/C.I have a 2011 Sx.Mine did the same thing for a long time.Eventually the rod slipped.Symptoms-knocking on starting,engine completely shuts off(this can happen during normal driving)check engine light.l took mine to the dealer Dec 22. 2018 and was told nothing was wrong.Dec 23rd is when it slipped.Engine was replaced.Another note,you don’t have to show them oil change records if they ask.Its covered under the catastrophe engine failure campaign.Sorry for the long reply.Be careful.
notice when i start my cars from over night or if it has sat for hours that it makes a noise like the oil isn't staying where it suppose too.