Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2020 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE
Fuel Delivery System
| Items | Specification | |
|---|---|---|
| Fuel Tank | Capacity | 55 L. (14.5 U.S.gal., 58.1 U.S.qt., 48.4 Imp.qt.) |
| Fuel Filter | Type | Paper type |
| Fuel Pressure | Low Pressure Fuel Line | Over 290 kPa (Over 2.9 bar, Over 2.95 kgf/cm2 , Over 42.06 psi) |
| High Pressure Fuel Line | 4-19.9 MPa (40.8 - 203.9 kgf/cm2 , 580.3 - 2900.1 psi) | |
| Fuel Pump | Type | Electrical, in-tank type |
| Driven by | Electric motor | |
| High Pressure Fuel Pump | Type | Mechanical type |
| Driven by | Camshaft | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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