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 to 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.
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.
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.
2003 Kia Optima QuestionsMy car is clicking when I try and start it, the battery is good and starter, plz (2 answers)
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.
My car isn't starting and I think it is this sensor.