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: General Safety Information and Caution


Safety Precaution     Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage.     • Be sure to shut off the high voltage by removing the ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


Inspection When the engine is shut off, the pressure change in the fuel tank by the ambient temperature is monitored by NVLD and when the engine is started, ECM judges whether there is a leak or not through the monitored data. If a leak is detected, ECM displays DTC P0455 or P0456. Process overview If ...

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