Kia Motor Optima owners have reported 1 diesel fuel system related problems since 1996. Table 1 shows the 1 most common diesel fuel system problems. The number one most common problem is related to the vehicle's delivery fuel pump (1 problem). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Delivery Fuel Pump problems |
The contact owns a 2013 kia Optima. The contact stated that while driving at various speeds, the vehicle was stalling despite depressing the accelerator pedal. The contact also stated that there was a fuel smell and that she repeatedly needed to refill the engine oil. Additionally, the contact stated that on three different occasions while driving at an undisclosed speed, the vehicle lost motive power and failed to restart, and had to be towed to her residence. The check engine and the engine oil warning lights were illuminated. The vehicle was then towed to a local dealer where it was diagnosed that the fuel pump needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The contact stated that after starting the vehicle and depressing the accelerator pedal, the vehicle lost motive power. The vehicle failed to restart and the contact stated that there was smoke coming from under the hood. The vehicle was towed back to the local dealer where it remained awaiting diagnosis and repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 94,000.