Kia Optima: Fuel Delivery System / Fuel Tank

Kia Optima DL3 2019-2024 Service and Repair Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Tank

Specifications

Item	Specification
Fuel Tank	Capacity	60 ℓ (15.8 U.S.gal., 63.4 U.S.qt., 52.8 lmp.qt.)

Components and components location

Component

1. Service Cover
2. Fuel Feed Tube Quick-Connector
3. Vapor Tube quick-connector
4. Filler-neck assembly

4. Heat Protector
5. Fuel Tank Band
5. Fuel Tank Complete

Repair procedures

Removal

1.	Release the residual pressure in the fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")

2.	Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly")

3.	Remove the fuel pump service cover (A).

4.	Disconnect the connectors (A, B, C). A : Fuel pump connector B : Fuel tank pressure sensor connector C : Fuel feed tube quick-connector

5.	Remove the rear muffler. (Refer to Engine Mechanical System - "Muffler")

6.	Separate the fuel filler hose (A) from the filler pipe (B) by releasing the clamp.

7.	Separate the leveling hose-quick connector (A).

8.	Separate the ventilation hose (A).

9.	Separate vapor hose hose quick-connector (A).

10.

Remove the front floor under cover (A) and the rear floor under cover (B).

Tightening torque :

Bolt : 7.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.7 lbf·ft)

Nut : 3.9 - 5.9 N·m (0.4 - 0.6 kgf·m, 2.9 - 4.3 lbf·ft)

11.

Remove the heat protector (A).

Tightening torque :

7.9 - 11.7 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.6 lb·ft)

12.	Support the fuel tank with a jack.

13.

Remove the fuel tank band (B) after loosening the mounting nuts (A).

Tightening torque :

40.0 - 53.9 N·m (4.0 - 5.5 kgf·m, 29.0 - 39.7 lb·ft)

14.	Remove the fuel tank from the vehicle.

Installation

1.	Install in the reverse order of removal.

Fuel Delivery System

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