Fuel Filter Location?

Good afternoon,

The fuel filter is located underneath the chassis on the left hand side of the fuel tank.

What is the issue?

Roy

Hi John,

I attached the location of the filter from the manual. However, it appears there are some that do not have this external filter. If yours does not have the filter in this location, the second attachment shows the in tank filter. Unfortunately, this is inside the fuel tank but all in tank filters are serviced for life and do not require replacement unless the pump comes out for some other issue.

Let me know if you have any other questions about this. Thanks

Did you check the location listed?

If it is not there, then it is part of the fuel pump.

Roy

Hello, I'm Danny,

Here is a basic fuel filter replacement tutorial for you to view:

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

I've attached a picture (below) of its location. It's under left side of vehicle, forward of fuel tank. Hope this helps and thanks for using 2CarPros.
Danny-

Good morning,

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

The fuel filter is located underneath the chassis on the left hand side of the fuel tank. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Welcome to 2CarPros.

I believe it is the left side, under vehicle, near the rear wheel. Take a look at the attached picture.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

Here are the directions specific to your vehicle:

2003 Kia Optima L4-2.4L
Procedures
Vehicle Powertrain Management Fuel Delivery and Air Induction Fuel Filter Service and
PROCEDURES
FUEL FILTER REPLACEMENT

1. Reduce the internal pressure of the fuel lines and hoses and perform the following operations.
- Disconnect the fuel pump harness connector in the trunk room.
- Start the engine and, after it stops, turn the ignition switch to OFF.
- Disconnect the battery negative (-) terminal.
- Connect the fuel pump harness connector.

2. Remove the two fitting nuts while holding the fuel filter nuts securely.

pic 2

3. Remove the fuel filter mounting bolts, and then remove the fuel filter from the fuel filter clamp.

Tightening torque
Fuel filter fitting nut : 25 - 35 Nm (250 - 350 kg.cm, 18 - 25 lb.ft)

____________________________________

Let me know if that helps or if you have other questions.

Take care,
joe

It should be near fuel tank ( under the car) if it is an in-line filter which is what it is listed as. Although, earlier models of the Optima had the fuel filter in the tank with the pump and sender assembly, so I wouldn't be surprised if they have it listed wrong. May want to check there for the fuel filter. Try removing rear seat cushion or check in the trunk to see if you have an access panel. Should be able to see sender unit from there to locate filter if it is in the fuel tank.

The fuel filter is located underneath the chassis on the left hand side of the fuel tank.

Check fuelpressure with a gauge first ti may be a bad pump. Autoparts rent them. There is an online filter near tank though.

If it won't crank check battery for condition including load test. Autoparts/tire stores do this for free.