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2003 Kia Optima Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Kia Optima

2003 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.

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2003 Kia Optima Questions

Took it to a garage, not sure they filled with Kia specific fluid!

won't start some times. replaced the censor but that did not fix the problem

I have changed bulbs, fuses, and even the switch and my brake lights will not work. Are there more fuses behind the fuse box by driver side? Please help!!

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2003 Kia Optima Recalls

KIA MOTORS CORPORATION (KMC) IS RECALLING 36,538 MODEL YEAR 2001-2004 OPTIMA VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHI...SOME PASSENGER VEHICLES MAY CONTAIN A FUEL TANK ASSEMBLY VALVE THAT MAY NOT CLOSE PROPERLY. IF A VEHICLE WITH A FUEL TANK ASSEMBLY VALVE THAT IS NOT PROPERLY CLOSED WERE TO ROLL OVER, FUEL SPILLAGE MAY OCCUR.

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2003 Kia Optima Reviews

I HAVE OWNED TIS CAR FOR TWO YEARS IT HAD 13,000 ON IT WHEN WE GOT IT WERE AT 80,000 NOW AND THE ONLY THING I HAVE REPLACED IS THE FACTORY BATTERY AWESOME CAR I HAVE BEEN A ASE MASTERTECH FOR YEARS AND EVEN THO IM A DIEHARD BOWTIE FAN THIS CAR IS AWESOME THE PADDLE SHIFT IS AWESOME FOR DAILY TRAFFIC

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