Kia Optima Hybrid: Fuel Delivery System / 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 screw (A).

5.
Remove the rear-LH wheel, tire, and the inner wheel house.
6.
Remove the filler-neck assembly from the vehicle after removing the bracket installation bolt (A).

Installation
1.
Install in the reverse order of removal.

Filler-neck assembly bracket mounting bolt :
3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)

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 ...

Accelerator Pedal Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal. 2. Disconnect the accelerator position sensor connector (A). 3. Remove the mounting nuts (B) and bolt (C), and ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Special Service Tools


Personal Protective Equipment NameIllustrationDescriptionInsulation gloveUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / 300A or above]Insulation shoesUsed when inspecting or working on the high voltage componentsInsulation clothesInsulation helmetSafety ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine And Transaxle Assembly Repair procedures


Removal     • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion. • To release the fuel system pressure before removing the engine assembly, start the engine with the fuel pump relay removed. ...

© 2025 Copyright www.koptimatfhev.com