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: Rain Sensor Repair procedures


Inspection Rain Sensing Wiper 1. In IGN2 ON state, if auto switch input (LIN communication) is ON then both wiper low relay and wiper high relay outputs are controlled by the rain sensor input signal. 2. If the wiper switch has been left in automatic mode with the vehicle ignition OFF, and then the vehicle ...

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


Inspection 1. Disconnect the negative(-) battery terminal. 2. Remove the lighting switch of the multi-function switch. (Refer to the multi-function switch) 3. With the front fog lamp switch, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the multi-function ...

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