Hyundai Elantra: Fuel Delivery System / Fuel Pump

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Pump

Repair procedures

Inspection

[Fuel Pump]

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.4) and ground (No.5).

Pin No	Discription
1	Fuel sender ground
2	-
3	Fuel sender signal
4	Fuel pump (+)
5	Fuel pump (-)

[Fuel Sender]

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the fuel pump assembly.

Using an ohmmeter, measure the resistance between terminals 1 and 3 of sender connector (A) at each float level.

Pin No	Discription
1	Fuel sender ground
2	-
3	Fuel sender signal
4	Fuel pump (+)
5	Fuel pump (-)

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

Position	Resistance (Ω)	Capacity (ℓ)
E	297 - 305	2
1/2	77.4 - 81.4	25
F	14 - 16	46.1

Removal

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

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

3.	Remove the rear seat. (Refer to Body (Interior and Exterior) - "Rear Seat Assembly")

4.	Remove the fuel pump service cover (A).

5.	Disconnect the fuel pump connector (A).

6.	Disconnect the fuel feed tube quick-connector (B).

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

•	When removing the locking ring, be careful not to damage the fuel tank and fuel pump.

•	When removing the locking ring, press the upper area with hand and rotate the wrench counter clockwise.

8.	Remove the fuel pump from the fuel tank.

Installation

Install in the reverse order of removal.

•	Be careful of fuel pump direction when installing. (Refer to the groove in the fuel tank)

Fuel Tank

Repair procedures Removal1.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 cable...

Fuel Filter

Repair procedures Removal1.Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump")2.Disconnect the fuel pump motor connector (A) and fuel sender connector (B)...

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Repair procedures

Removal1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.2.Turn the steering wheel so that the front wheels can face straight ahead. 3.Remove the drive airbag module.(Refer to Restraint - "Drive Air Bag Module")4.Disconnect the steering wheel connector (A)...

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Winter Precautions

Use high quality ethylene glycol coolant Your vehicle is delivered with high quality ethylene glycol coolant in the cooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the cooling system, lubricates the water pump and prevents freezing...

Tilting the sunroof

Tilt the sunroof open:

Push the sunroof control lever upward until the sunroof moves to the desired position.

To close the sunroof:

Press the sunroof lever forward until the sunroof moves to the desired position.