2004 Kia Optima 6 cyl Front Wheel Drive Automatic 65k miles
vehicle cuts out at 3000 rpm while standing or driving. If I depress the accelerator the car will run perfect till 3000. Then it cuts out and drops to 3000, then will rev over and back down, repeats. The car hasnt been filled since the beginning of the week. Had the problem. Then went away within an hour. Resurfaced 5 days later without incident between then and now.