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: Weight Classification System (WCS) Repair procedures


Removal 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the front passenger seat assembly. (Refer to the Body group - "Seat") 3. Remove the OCS assembly. (Refer to the Body group - "Seat")     – There are several case about DTC, ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Side Impact Sensor (SIS) Description and Operation


Description Side Impact Sensor (SIS) system consists of two P-SIS which are installed at each center of the front door module (LH and RH) and two SIS which are installed at each center pillar nearby (LH and RH). Side Pressure Sensor is also called P-SIS because it detects pressure due to collision at ...

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