Kia Optima Hybrid: Fuel Delivery System / Fuel Pump Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Fuel Delivery System / 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 the fuel tank pressure sensor & fuel pump connector (A).

4.	Remove the plate cover (B) after removing the installation bolt, and then remove the fuel pump from the fuel tank.

Installation

Install in the reverse order of removal.

Fuel pump plate cover mounting bolt:

2.0 ~ 2.9 N.m (0.2 ~ 0.3 kgf.m, 1.4 ~ 2.2 lb-ft)

Be careful of fuel pump direction when installing (Refer to the groove in the fuel tank).

Fuel Line Repair procedures

Removal 1. Remove the fuel tank (Refer to “Fuel Tank”) 2. Disconnect the fuel feed tube (A). 3. Disconnect the vapor hose (A). 4. Disconnect the vapor hose quick-connector (A). 5. Remove the fuel tube ...

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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Injector Specifications

Specification ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)] ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Output Speed Sensor Specifications

Specifications Type: Hall effect sensor Operation condition (°C)°F((-)40 ~ 150)) -104 ~ 302Air gap(mm)in.(0.25 ~ 1.9)0.00984 ~ 0.0748Output voltageHigh1.18 ~ 1.68Low0.59 ~ 0.84 ...