Hyundai Palisade (LX2): Fuel Delivery System / Fuel Line

Hyundai Palisade (LX2) 2020-2025 Service Manual / Engine Control/Fuel System / Fuel Delivery System / Fuel Line

Repair procedures

Removal
Hyundai Palisade. Repair procedures   
•
Be careful not to damage the fuel line during repair.
Hyundai Palisade. Repair procedures   
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In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don’t do any repair work right after engine stops.
High pressure fuel pipe [High Pressure Fuel Pump ↔ Delivery pipe]
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
3.
Remove the control wiring harness (A).

Hyundai Palisade. Repair procedures
4.
Remove the high pressure fuel pipe mounting bolts (A).
High pressure fuel pipe mounting bolt :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures
5.
Remove the high pressure fuel pipe flange nut (B).
High pressure fuel pipe flange nut :
29.4 - 35.3 N.m (3.0 - 3.6 kgf.m, 21.7 - 26.0 lb-ft)
Hyundai Palisade. Repair procedures   
•
Use the special service tool [SST No. : 09314-3V100] to install the high pressure fuel pipe and cross over pipe.

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures
6.
Remove the high pressure fuel pipe (A).

Hyundai Palisade. Repair procedures
High Pressure Fuel Line [Delivery Pipe (Bank 1) Line ↔ Delivery Pipe (Bank 2) Line]
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
3.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the surge tank.
(Refer to Engine Mechanical System - "Surge Tank")
5.
Remove the intake manifold
(Refer to Engine Mechanical System - "Intake Manifold")
6.
Remove the cross over high pressure fuel pipe (A).
Cross over high pressure fuel pipe flange nut :
29.4 - 35.3 N.m (3.0 - 3.6 kgf.m, 21.7 - 26.0 lb-ft)

Hyundai Palisade. Repair procedures
Low Pressure Fuel Line [High Pressure Fuel Pump ↔ Extension Fuel Line]
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
3.
Remove the control wiring harness (A).

Hyundai Palisade. Repair procedures
4.
Remove the fuel line mounting bolts (A).
5.
Remove the low pressure fuel line mounting nuts (B).

Hyundai Palisade. Repair procedures
6.
Remove the low pressure fuel line (A).

Hyundai Palisade. Repair procedures
Low Pressure Fuel Line [Fuel Tank <-> Extension Fuel Line]
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Turn ignition switch OFF and disconnect the negative (-) battery terminal.
3.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the low fuel line (A) after loosening the mounting nuts.
5.
Disconnect the vapor hose (B).
Low fuel line installation nut :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 lb-ft)

Hyundai Palisade. Repair procedures
6.
Remove the fuel line fixing clip (A).

Hyundai Palisade. Repair procedures
7.
Lift the vehicle.
8.
Remove the fuel line fixing clip (A).

Hyundai Palisade. Repair procedures
9.
Remove the fuel tank.
(Refer to Fuel Delivery System - "Fuel Tank")
10.
Open the vapor tube and fuel feed line fixing clip (A) to using driver.

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures
Installation
1.
Install in the reverse order of removal.
Inspection
1.
Visually check the fuel lines for cracks, leakage, loose connections, deformation or tank band looseness.

    Repair procedures Removal 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2.

    Repair procedures Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2.

    Other information:

    Hyundai Palisade (LX2) 2020-2025 Service Manual: General safety information and caution

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    Hyundai Palisade (LX2) 2020-2025 Service Manual: Components and components location

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