Having problems with your 2004 Kia Optima ?
Location of fuel filter - 2004 Kia Optima
The fuel filter on your car is located as part of the fuel pump inside the fuel tank. It is not servicable as a normal maintenence procedure. To replace it you need to remove the fuel pump and then remove the filter. It is servicable and must be purchased from the dealer. It is meant to be a lifetime filter, meaning replace it when it is a problem or with the fuel pump.
Repair Help & Product Troubleshooting for 2004 Kia Optima
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