Hyundai Palisade: Fuel Delivery System / Fuel Pump

Hyundai Palisade (LX2) 2020-2025 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.

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+)

Also check that the resistance changes smoothly when the float is moved from "E" to "F".

Position	Resistance (Ω)	Capacity (ℓ)
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).

3.	Remove the fuel pump service cover (A) after loosening the mounting screws.

4.	Disconnect the fuel pump control module connector (A) and fuel pressure sensor connector (B).

5.	Disconnect fuel feed tube quick-connector (C).

Remove the locking ring (A) by using the special service tool [No.: 09310-B8100].

•	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.

Installation

1.	Install in the reverse order of removal.

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