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

Hyundai Palisade (LX2) 2020-2026 Service Manual / Engine Control/Fuel System / Fuel Delivery System / Fuel Pump

Repair procedures

Inspection
1.
Turn ignition switch OFF and disconnect the negative (-)battery cable.
2.
Remove the fuel pump assembly.
3.
Check motor operation by fuel pump connector (A) connecting power (No.1) and ground (No.6).
Pin No
Description
1
 Fuel sender ground
2
 Fuel pressure sensor (FPS) signal input
3
 Fuel pressure sensor (FPS) ground (-)
4
 Ground
5
 CAN [Low]
6
 Fuel sender signal
7
 -
8
 Fuel pressure sensor (FPS) power supply(+5V)
9
 CAN [High]
10
 Battery power (B+)

4.
Also check that the resistance changes smoothly when the float is moved from "E" to "F".
Position
Resistance (Ω)
Capacity (â„“)
E
 198 - 205
 5
1/2
 146.9 ~ 150.9
 35.5
F
 7 - 9
 69.6

Removal
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Remove the floor carpet service cover (A).

Hyundai Palisade. Repair procedures
3.
Remove the fuel pump service cover (A) after loosening the mounting screws.

Hyundai Palisade. Repair procedures
4.
Disconnect the fuel pump control module connector (A) and fuel pressure sensor connector (B).
5.
Disconnect fuel feed tube quick-connector (C).

Hyundai Palisade. Repair procedures
6.
Remove the locking ring (A) by using the special service tool [No.: 09310-B8100].
Hyundai Palisade. Repair procedures   
•
When removing the plate cover, be careful not to damage the fuel tank and fuel pump.
•
When removing the plate cover, press the upper area with hand and rotate the wrench counter clockwise.

Hyundai Palisade. Repair procedures
7.
Remove the fuel pump from the fuel tank.

Hyundai Palisade. Repair procedures
Installation
1.
Install in the reverse order of removal.

    Repair procedures    • Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.

    Description and operation Description The fuel pump control module (FPCM) is installed on the right side of the fuel tank and controls the DC motor mounted inside the low pressure fuel pump.

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