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: Engine Coolant Temperature Sensor (ECTS) Description and Operation


Description Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage of the cylinder head for detecting the engine coolant temperature. The ECTS uses a thermistor whose resistance changes with the temperature. The electrical resistance of the ECTS decreases as the temperature ...

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


Component Location 1. Windshield wiper arm & blade2. Wiper & washer switch3. Windshield washer hose4. Windshield wiper motor & linkage5. Washer motor6. Washer reservoir7. Wiper relay (Engine room relay box) ...

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