Question about 2003 Kia Optima

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Fuel filter I have a 2003 kia optima and cannot locate the fuel filter. It has a 6 cylinder 2.7 engine. I have followed the fuel lines from the tank to the injectors and can't find the filter. I could not find access to the fuel tank to check if it's inside. please help. send diagram please.

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  • OldMan187 Jul 19, 2008

    Thanks

  • Anonymous Dec 02, 2008

    I have a 2003 kia optima and cannot locate the fuel filter. It has a 6 cylinder 2.7 engine. I have followed the fuel lines from the tank to the injectors and can't find the filter. I could not find access to the fuel tank to check if it's inside. please help. send diagram please.

  • Anonymous Mar 17, 2014

    I need the pressure sum of the injector pump on my Kia K2700 Workhorse. At what pressure does the valve open to send the fuel back to the tank?

  • Anonymous Mar 31, 2014

    4 cylinder

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It is inside the fuel tank.

Posted on Jul 19, 2008


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Sorry to all of the people who say there's a fuel filter in the tank. But I just removed the pump and sending cluster, thru the access port in the trunk of my '03 Optima. All I found on the unit was a fuel sock. Not a large filter with 2 fittings on it. Which is what you'll get if you buy one at the auto parts store. I also just got off the phone with a well respected import mechanic in my area. He said that alot of Kia's don't have fuel filters. Reason! Some engineers believe the fuel we get now days is so top quality that filters are not needed. LOL! By the way the sock's only purpose is to remove large particles that some times occur in the tank from rust or corrosion. It can usually be cleaned with throttle body cleaner and not replaced.

Posted on Sep 14, 2008

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The fuel filter location varies with engine size on the Kia Optima. The 1.5-, 1.6- and 2.4-liter engines have the fuel filter located under the car in the front left corner of the fuel tank. The 1.8-liter engine has the fuel filter located on the driver's side firewall. All the filters have the same replacement procedure. There are actually two filters on the Kia Optima. A filter called a strainer is attached to the intake side of the fuel pump inside the fuel tank.

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•2
Start the engine. It is not likely to start and even if it does it will only run for a second since the fuel pump relay has been removed, which disabled the fuel pump. This procedure will drop the fuel pressure in the fuel line. Raise the rear of the vehicle with the floor jack and support it by the frame with the jack stands. This is for engines 1.5, 1.6 and 2.4.

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Remove the fuel lines on both ends of the fuel filter. Use the scribe--a long pointy needle--to lift the white retainer straight up located in the center of the connector. This releases the fuel line from the fuel pump. Do the same to the other side of the fuel pump.

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Remove the bolt in the center of the fuel pump retainer bracket using a 10 mm socket. Pull the fuel pump out of the bracket.

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Insert the new fuel pump into the retainer bracket. Make sure that the inlet side faces the fuel line to the fuel tank and the outlet toward the fuel line to the engine. Install the fuel pump and bracket and tighten the bolt.

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Place a white retainer clip that came with the filter into the holes in each of the connectors. Just push it in enough to snap the bottom ends of the clip in place. The clip should now be standing straight up with just the bottom tips in the connectors. Push each of the fuel lines into the filter one at a time. Holding the fuel line tightly into the filter, push the white retainer clip down to lock the fuel filter and fuel line together. Lower the car and replace the fuel pump relay. Start the car and check for leaks.

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Hello.
The fuel filter is located underneath the chassis on the left hand side of the fuel tank.
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There you are as requested.
Thank you for using FixYa.
KL

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