Looks like an in tank filter along with the fuel pump. Instructions good as far as they go, but no picture of where filter is located in the assembly. One of the articles below says you need a special tool, the other doe not mention one. (PS had to delete most pictures to meet posting limits, they are available on KIA Global Service Way site)
I remember there was a recall on noise caused by pump. As long as you will have it apart ..... and If yours was built before 10/19/2006 check out the fix below. Good luck and let us know if you learn something new. George in Wisconsin.
REMOVAL(INCLUDING FUEL FILTER AND FUEL PRESSURE REGULATOR)1.Preparation
Remove the 2nd seat(s) (Refer to "BD" group in this SERVICE MANUAL).
Remove the Service Cover (A).
Disconnect the Fuel Pump Connector (A).
Start the engine and wait until fuel in fuel line is exhausted.
After the engine stalls, turn the ignition switch OFF.
2.After disconnecting the fuel feed quick connector (A), the fuel pump connector and fuel tank pressure sensor connector (C), remove the fuel pump cover (D).
3.After removing the opening nut (A), remove the fuel pump from the fuel tank.
INSTALLATION1.Install the Fuel Pump assembly according to the reverse order of "REMOVAL" procedure.
Tightening Torque: 78.5 ~ 98.1 N·m (8.0 ~ 10.0 kgf·m, 57.9 ~ 72.4 lbf·ft)
KT2007030802 TSB Type
Sedona [VQ](2006) Area
N. America Gr./Sys./Comp
Fuel System / Fuel Delivery System / Fuel Pump Symptom NNN001
Subject 2006MY Sedona Fuel Pump Noise (Fuel - 012) Description
This bulletin provides a repair procedure for fuel pump noise, which may occur on some 2006 Sedona (VQ) vehicles with a production date earlier than 10/19/2006.
Some 2006MY Sedona (VQ) vehicles may exhibit a humming / buzzing noise or vibration from the fuel pump or fuel tank area. To address this condition, secure the fuel pump return line to the fuel pump housing as outlined in the following instructions.
Prior to performing any work, verify that the vehicle exhibits a humming/buzzing noise or vibration from the fuel pump or fuel tank area, and that the vehicle production date is before 10/19/2006.
Service Procedure Repair Procedure:
1. Remove the fuel pump following the procedure located on KGIS.
2. Locate the return line of the fuel pump module.
3. Install a tie wrap around the return line and through the hole of the fuel pump housing as shown in the photo.
4. Attach the fuel return line to the fuel pump housing tightly without causing the return line to collapse.
5. Trim off excess tie wrap material.
6. Re-install the fuel pump in the reverse order of the removal.
7. Start the engine and confirm there is no fuel leakage. Confirm that the original customer complaint of a humming/buzzing noise has been corrected.
: Locally sourced Tie Wrap
To ensure material is fuel resistant, etc., use 3M™ part number 06225, or other tie wrap meeting the following specifications:
Type 6/6 Nylon
6" length by 0.14" width
30 lbs or greater tensile strength
WARRANTY CLAIM INFORMATION:
Labor Op Code
R&R Fuel Pump
Install Tie Wrap