Kia Optima Hybrid: Fuel Delivery System / Fuel Filter Repair procedures

Replacement
1.
Remove the fuel pump (Refer to “Fuel Pump” in this group).
2.
Disconnect the electric pump wiring connector (A) and the fuel sender connector (B).

3.
Remove the cushion pipe fixing clip (C), and then separate the head assembly (D).

4.
Remove the return nozzle (B) after releasing the fixing hook (A).

5.
Remove the reservoir-cup (B) after releasing the fixing hooks (A).

6.
Remove the pre-filter (C) after releasing the fixing hooks (A,B).

   
Be careful of O-ring.
7.
Separate the electric pump motor (A) from the fuel filter (B).

8.
Replace new fuel filter.
Fuel Pump Repair procedures

Removal 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). 2. Remove the fuel tank. (Refer to "Fuel Tank" in this group) 3. Disconnect ...

Filler-Neck Assembly Repair procedures

Removal 1. Lift the vehicle. 2. Disconnect the fuel filler hose (A). 3. Disconnect the ventilation hose (B) from the fuel tank air filter. 4. Open the fuel filler door and then remove the filler-neck installation ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location


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Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: High Voltage Shut-off Procedures


High Voltage Shut-off Procedures     Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.     • High voltage components: ...

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