Two problems related to engine and engine cooling have been reported for the 2006 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Kia Motor Optima based on all problems reported for the 2006 Optima.
2006 kia Optima. Consumer writes in regards to clutch and engine light turn on and off.
"first" time problem happened was July 3, 2016 with my 2006 kia Optima. I was sb on hwy i25 in cs, CO. Speedometer read 25mph as I was coming off the on-ramp. I accelerated to 40mph into flow of traffic. I felt a lurch & the vehicle automatically accelerated. Speed went from 40mph to about 60 mph without depressing accelerator. Breaking did not slow it down. I felt car was going out of control. My passenger reached over & turned ignition switch off & on quickly, to decelerate & accelerate. This helped car slow down when key was turned off to the first click & helped maintain an adjusted speed as traffic was in-front & in-back. We kept doing this until car slowed down enough to pull over to right shoulder. Key was completely turned off & car was at a complete stop. Car was towed to mechanics. Diagnostic was performed using engine analyzer. It was road tested multiple times & didn't it duplicate my experience. This happened again sept. 10, 2016 as I, again, entered hwy i25 so. I was driving alone. My speedometer was 40 mph, in heavy hwy traffic. I once again "felt" lurch of car. This time it "stuck" at 40 mph. It didn't slow down when I braked, it continued at 40 mph. I continued to brake & speed did slow a bit. My foot was totally down on break when it was still auto accelerating at the hwy exit ramp; now slowed to 26 mph as I continued holding brake down. Finally speed was down to 23mph as I drove into a parking lot (no cars were moving in & out at the time). I turned the key off completely; my foot was still on the brake & the car came to a lurching haul at that time in the middle of the parking lot. I waited about a minute & then started the engine again with my foot on the brake. I was able to pull into a parking slot. I started it & very slowly drove home, but not on the hwy. I maintained speed of 25-30mph. It was only about 1k between the 2 incidents.