Kia Optima: Fuel Delivery System / Fuel Line

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

Components and components location
Component

1. Filler-Neck Assembly
2. Fuel Tank Complete
3. Fuel Line

Repair procedures
Removal
1.

Release the residual pressure in fuel line.

(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")

  

When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the KDS after completion of "Release Residual Pressure in Fuel Line" work.

2.

Disconnect the negative battery terminal.

3.

Separate the fuel feed tube quick-connector (A).

  

Open the clamp cover before disconnecting the quick-connector.

Separate the quick-connector after pressing the clip (A) certainly using the clip removing tool.

Be careful not to damage the plastic clip.

Damaged clip can result in fuel line leakage due to bad connection.

4.

Separate the vapor hose (A).

5.

Remove the fuel tank.

(Refer to Fuel Delivery System - "Fuel Tank")

6.

Disconnect the vapor quick-connector (A) from the canister.

7.

Remove the cover (A) after loosening the mounting nuts.

8.

Remove the fuel line (A) from the vehicle after removing the fixing clips.

Installation
1.

Install in the reverse order of removal.

Fuel Pressure Regulator
Components and components location Component 1. Plate Assembly 2. Clip 3. O-ring 4. Fuel Reservoir Cup 5. Clip 6. Fuel Pressure Regulator 7. Fuel ...

Filler-Neck Assembly
Components and components location Components 1. Filler-Neck Assembly 2. Canister 3. Fuel Tank Complete Repair procedures Removal ...

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