Engine Exhaust System problems of the 2013 Kia Motor Optima

My car puts out exhaust and loses power while stepping on the gas peddle. Oil disappears when this happens. Have to put oil in my car about every 2 weeks. Engine light comes on and car won't go. Been in shop 4 times but kia will not fix it correctly because the engine code that they need to fix the engine doesn't come on so I now don't have a car to drive because they say the only fix is a new engine but they won't fix it. On going issue for past 5 months. Same thing everytime. They put a bandage on it and then it lasts for about 2 to 5 weeks and then dies again. Same issue every single time. This happens while the car is in motion and then when it loses power my car just slows down very quickly and won't go. Dangerous/scary when this happens on the freeway. The car also does this bucking where it feels like it is trying to go but won't.

While I went on the highway the acceleration felt very sluggish and had a hard time speeding up to the speed limit. The car only got worse as I went on a street and it felt as though it did not want to go, like it lost most of its power. Turns out something is wrong with the engine but I feel that my car should be under a newer recall but isn�t, as smoke was coming out of the exhaust and the engine light wasn't even on. Somehow the car was out of oil with no light coming on to indicate that and recently about a week ago oil was put in, and weeks prior oil was put in.

Tl the contact owns a 2013 kia Optima. Within five minutes of entering the vehicle, the contact's lips and eyes started to burn and there was a fuel odor inside the cabin. The failures occurred after the contact filled the fuel tank. The contact stated that she could not breathe inside the vehicle and the air made her sick. Medical attention was not received. The contact scheduled a diagnostic appointment at crown kia (5500 34th st n, st. Petersburg, FL 33714, (844) 921-3247). The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 74,439.

Car was running fine or so I thought and @ 1 week after getting my oil changed there was excessive exhaust/smoke and my son and I thought it might be bad gas or clogged injectors. We drove it to az and back to nv. Car seemed to run ok at that point then my daughter took it to CA and the oil light started flickering on and off and finally the engine light came on. She took it to a jiffylube where they said it had no oil. What?!?!?! the oil was just changed at 47,000 miles. Put 4 qts in and took it aaa to run an engine diagnostic. Said everything was fine according to the code they got and reset the engine light. Wrong again. . Daughter drove away and same problem. Took it back to aaa where they determined it was an internal engine problem and to take it to the dealership. Sludge everywhere in the engine. My car only has 48,000 miles on it and I have the oil changed as scheduled. Waiting to hear what kia is going to do, but from the sounds of the prior complaints, they are not going to honor their warranty. I can¿t afford $5,000+ to replace the engine in my car. This is so ridiculous. They need to honor their warranty for their shitty engines.

Was driving to work(2013 kia Optima appx 32000 miles) as I accelerated to merge on the intestate, a large cloud of smoke came out of the exhaust,there was no indication or any warning, there is no maintenance light to indicate there is a problem with the vehicle. I took the vehicle to my kia dealership they removed the valve cover and was told there is excessive sludge on the engine that I would need a new engine, this is not cover by kia warrenty,after doing several day of research I have discovered that there are many kia owner who are experiencing the same type of problems we are being told that excessive sludge is the cause but most mechanic know that sludge is a symptom not a cause, and what is excessive 1%or 5% who makes that determanition? I have done regular oil changes myself. I contacted the kia home office and am waiting for a reply.

During the second oil change at the dealership, I indicated that the vehicle's exhaust was very strong and was coming into the vehicle both at speed and while sitting. The service technician stated that the vehicle needed to have only premium fuel in it to stop the issue. The owners manual does not state that this is the case but in order to prevent the strong exhaust, we switched to only use premium fuel which prevented the majority of the strong fumes but not all. In getting the vehicle's third oil change, the oil was extremely dirty and the service technician stated that he had seen no reason why a vehicle of such low mileage should have oil anywhere near the condition that it did.