2004 Kia Optima Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Kia Optima
2004 Kia Optima Problems
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.
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.
2004 Kia Optima Questions
I replaced the starter n battery n still clicks...what is wrong with the car
This is the only time it causes a problem cranking.
2004 Kia Optima Recalls
2004 Kia Optima Reviews
I paid off my 2004 Kia Optima Lx...I sure regret not trading this piece of junk in. My problems with this car is once in a while my key won't open my trunk...the whole passenger side of the car front & back the electrical doesn't work ..this pile of junk is a bad car period. Anyone interested in buying a Kia vehicle better think again....
I have the 6 cyl model. The car now has 100,000 miles. No troubles yet. The paint on the door handles has come off. No oil leaks, no brake job yet, still runs well.
I've owned my 2004 Kia Optima LX (4cyl) for a few years now and have put about 45K miles on it). Outstanding car, great value for the money. No major problems on mine, but I am religious about preventative maintenance. With the Optima make sure you replace the timing belt every 50K-60K miles, as they have an 'interference' motor, so if your belt breaks on you, it'll be cheaper to buy an entirel...