Kia Forte: Fuel Delivery System / Fuel Line

Kia Forte 2019-2025 (BD) Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Line

Repair procedures

Removal

Low Pressure Fuel Line [High Pressure Fuel Pump ↔ Fuel Tank]

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

2.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

3.	Remove the air cleaner. (Refer to Engine Mechanical System - "Air Cleaner")

4.	Remove the battery. (Refer to Engine Electrical System - "Battery")

5.	Disconnect the low pressure fuel line quick-connector (A).

Disconnect the vapor hose (B).

Open the clamp cover (B) before disconnect the quick connector. (If the clip is applied)

When removing the quick-connnector with the clip removing tool (A), be careful not to damage the plastic clip (B).

If the clip is damaged, fuel line leak can be occurred due to a bad connection.

7.	Remove the fuel tank. (Fuel Delivery System - "Fuel Tank")

8.	Remove the front sub frame. (Refer to Suspension System - "Sub Frame")

9.	Remove the fuel line (A) after loosening the mounting bolts and bracket.

High Pressure Fuel Line [High Pressure Fuel Pump ↔ Delivery Pipe]

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

2.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

3.	Remove the air cleaner. (Refer to Engine Mechanical System - "Air Cleaner")

4.	Remove the battery. (Refer to Engine Electrical System - "Battery")

Remove the installation high pressure fuel pipe flange nut (A) from the high pressure fuel pump with the special service tool [SST No. 09314 - 3Q100 or 09314 - 27130].

High pressure fuel pipe flang nut:

26.5 - 32.4 N·m (2.7 - 3.3 kgf·m, 19.5 - 23.9 lb·ft)

Remove the installation high pressure fuel pipe flange nut (A) from the delivery pipe with the special service tool [SST No. 09314 - 3Q100 or 09314 - 27130].

High pressure fuel pipe flang nut:

26.5 - 32.4 N·m (2.7 - 3.3 kgf·m, 19.5 - 23.9 lb·ft)

7.	Disconnect the engine coolant temperature sensor connector (A).

Remove the High pressure fuel pipe function block mounting bolt (A).

High pressure fuel pipe function block mounting bolt:

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

9.	Remove the high pressure fuel pipe.

Installation

1.	Install the fuel line in the reverse order of removal.

Install the high-pressure fuel pipe as follows.

(1)	Completely pre-tighten the both side nuts (A) on high pressure tightening area of high pressure fuel pipe while keeping them vertically.

(2)

Tighten the high pressure fuel pipe function block mounting bolt (B).

Tightening torque :

7.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.7 lb·ft)

(3)

Completely tighten the both side nuts (A) on high pressure tightening area of high pressure fuel pipe.

Tightening torque :

26.5 - 32.4 N·m (2.7 - 3.3 kgf·m, 19.5 - 23.9 lb·ft)

•	Do not reuse the high pressure fuel pipe.

•	Be careful not to transform the shape of the high pressure fuel pipe.

•	Torque wrench should not be tilt when you tighten the nut.

•	Follow the order and the tightening torque when you assemble.

•	Inspect fuel leakage after high pressure fuel pipe assembly.

•	Use the special service tool (09314-3Q100) to install the high pressure fuel pipe.

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