What's New for 2004 Kia Optima
Knowing how much a vehicle has changed from previous model years can help provide additional context when reviewing reliability ratings. Our Editors give you the bottom-line on what's new, the pros, the cons and more.
What's New for 2004
The Kia Optima receives only minor revisions for the 2004 model year. The grille has been revised, 16-inch wheels are now standard on V6 models and the alloy wheels on the EX (last year's SE) have been redesigned. Finally, an in-glass antenna replaces the old power mast style unit from last year, but only on the EX and the LX with the optional cassette/CD audio system. Read More
Long-Term Reliability Ratings by Identifix
Portions © 2008 by Identifix, Inc. All rights reserved
Ratings Key
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Minimal Problems |
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Moderate Problems |
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Significant Problems |
2004 Kia Optima Reliability Rating
| Category |
Rating |
Comments |
| Engine |
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An occasional problem on this vehicle is the failure of the Timing Belt (2.4L engine only). This failure can cause the engine to stall and will prevent the engine from starting. When the timing belt fails it may also damage the Crankshaft Position (CKP) Sensor. The damaged CKP can prevent the engine from starting, and may cause the Check Engine Light to illuminate. In extreme cases, if the Timing Belt breaks while driving, it is possible to damage the Engine Valves. The cost to repair the Timing Belt is estimated at $106.90 for parts and $195.00 for labor. The cost to replace the CKP sensor is estimated at $108.35 and $136.50 for labor, or can be replaced at the same time as the timing belt for no additional labor. The cost to repair the Engine Valves is estimated at $325.00 for parts and $715.00 for labor. All prices are estimates based on $65.00 per flat rate hour and do not include diagnostic time or any applicable sales tax. |
| Transmission & Driveline |
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| Steering & Suspension |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Accessories |
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| Overall |
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4 out of 5 |
Reliability ratings displayed above reflect style specific standard features and may vary from aggregated values displayed for the same year in the historical model overview below.
Reliability History for Kia Optima
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2002 |
2003 |
2004 |
2005 |
2006 |
| Engine |
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| Transmission & Driveline |
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| Steering & Suspension |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Accessories |
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| Overall |
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Reliability History for Kia
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2002 |
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2004 |
2005 |
2006 |
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| Steering & Suspension |
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| Brake |
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| Heating & Air Conditioning |
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| Starting & Charging |
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| Accessories |
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| Overall |
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