Table 1 shows 26 common engine and engine cooling related problems of the 2012 Kia Motor Optima. The number one most common problem is related to the engine and engine cooling (230 problems). The second most common problem is related to the engine knocking noise (23 problems).
The dealer is refusing to replace the engine under the previously completed safety recall campaign sc147 (NHTSA campaign 17v224000). The engine is currently exhibiting clear signs of connecting rod bearing failure—the exact mechanical hazard sc147 was issued to address. Read details...
Engine is making knocking sound Read details...
Tl the contact owns a 2012 kia Optima. The contact stated that while driving t 65 mph, without warning, the vehicle started to shudder. The contact veered to the shoulder of the road and inspected the fuel in the vehicle. The fuel level was low. Read details...