One problem related to loud engine noise has been reported for the 2016 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Kia Motor Optima based on all problems reported for the 2016 Optima.
Sometimes when I start the car it only runs at about 500rpm and the digital speedometer starts going up in numbers when I'm in park and I have no power steering. I can put the car in drive and park or open the door and it starts acting normal. It also acts like it's going to shut off when I come to a stop. I am aware that the rpms drop when you stop almost like a gas saver but with in the last 20 thousand miles it has gotten really rough. It burns oil like crazy the dealership is aware of this but can't do anything with the engine tell it throws a code and they can't duplicate any of my other issues, the front end has made awful noises for the last 50 thousand miles or so and has had the front suspension replaced but that didn't fix the issue. Iv has the knock sensor replaced but I'm convinced it was just a gimmick so the car won't throw codes anymore because it should be with the issues I'm having. Like when the electronic steering goes out I get no dash light. I wish kia would own up to their issues.