Hi,
There is only one fuel filter and it is in the fuel tank. Here are the directions from my manual for replacing the filter. The attached pic correlates with these directions.
2003 Kia Truck Sedona V6-3.5L
Procedures
Vehicle Powertrain Management Fuel Delivery and Air Induction Fuel Filter Service and Repair Procedures
PROCEDURES
Fuel pump & fuel filter assembly replacement
1. Remove the fuel tank cap to lower the fuel tank's internal pressure.
2. Locate access cover.
Pic 1
3. Remove the fuel pump & fuel filter assembly installation screws, then remove the fuel pump & fuel filter assembly from the fuel tank.
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Let me know if you have other questions.
Take care,
Joe
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Wednesday, February 12th, 2020 AT 8:00 PM