Two problems related to engine funny noise have been reported for the 2014 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Kia Motor Optima based on all problems reported for the 2014 Optima.
As I was driving on the freeway my started to make a weird noise. As I accelerated to get over to eventually pull over my car started making a loud knocking sound. As I opened the hood you could definitely tell the noise was coming from the engine I looked online and their was a recall for the same exact issue.
On Sunday 02/11/2018 my car died getting off the highway doing 70mph. I was able to get to a safe place car is a 2014 kia and has 46,763 miles on it. Had it towed to the dealership. It's also part of the recall notice I received 10/04/2017, 17v224. Call kia 3 times on 02/19/2018 first time I was saying that my car still wasn't fixed from the long block that was replaced on Thursday that was still making funny noises and that there was a sweet burning smell. Was told by the 1st person I talked to give it time and it will work itself out. That sweet smell was the oil burning off of the engine that they just replaced and that it was no big deal. I call back not even an hour later to say my heat stopped working they told me that I would have to have a diagnostic run on it and then it will cost me $99 and if they determine wasn't part of the engine work they had just done. That person made a 10 a. M. Appointment for 2/20/2018. Since my heat wasn't working I had to keep using my wipers and fluid, because the defrost wasn't working. When home I went to put more windshield wiper fluid in the car I noticed that they did not put coolant in the car which is needed to cool the engine so it doesn't seized up stall or blowup. So when they replace the engine they didn't put coolant in the car which is needed. So now I'm having the car towed back to kia so they can make sure that this engine isnt shot now also. That's also the reason the heat stopped working I'm sure. I've been driving this car since I got it back on 02/15/2018 with no cooling probably driven it 20 hours since I'm a lyft driver. So after they put in a replacement long block because of the recall this Thursday 02/15/2018 they didn't put coolant or antifreeze in the car so ii blew the new engine and also messed up my starter. Had it towed back to the dealership 02/19/2018.