2003 Kia Optima Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Kia Optima
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2003 Kia Optima ProblemsSoftware Update Available Which May Correct Transmission Issues
Reprogramming the transmission control module with the latest Kia transmission software may fix abnormalities in the automatic transmission and erroneous transmission-related Check Engine Light illumination. Software updates are commonly most effective on newer vehicles. Higher mileage vehicles may exhibit a similar symptom caused by a component failure. However, whenever major transmission repairs are performed the transmission software should be checked and updated as necessary.
Check Engine Light illumination—combined with a lack of power or a stumble on acceleration—may be caused by the throttle position switch (TPS). Kia released an improved part which should correct this concern.
A faulty door latch assembly may cause one or both front doors to be difficult to open. Replacing the worn latch will commonly correct this problem.
2003 Kia Optima QuestionsWhat is wrong with my gas tank? (1 answer)
When fueling at gas station the pump will stop and I can hear the gas gurgling down than I can pump some more gas and same thing happens. It takes 10 minutes to fuel 5 dollars. When I start my car it will turn on than shut off. I need advise.
the starter and battery are good, but it just will not turn over, I use to knock on the starter, but it is still goo, but now itjust clicks when I tried to start it
Sometimes the brake pedal seems like it isn't really working and the car doesn't want to stop. If you press too hard, one of the the wheels locks up. And sometimes when you step on the brake, the car pulls to the left.