Hyundai Elantra (CN7): Fuel Delivery System / Fuel Tank

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

Repair procedures

Removal
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 cable.
3.
Remove the rear seat.
(Refer to Body - "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).

7.
Disconnect the leveling hose (A).
8.
Disconnect the fuel filler hose (B).
Tightening torque :
4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

9.
Disconnect the vapor hose quick-connector (A)

10.
Remove the floor under cover (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 Ib-ft)

11.
Separate the brake line after removing the bracket mounting bolt (A).
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

12.
Remove the fuel tank band (A).
Tightening torque :
39.2 - 54.0 N.m (4.0 - 5.5 kgf.m, 28.9 - 39.8 lb-ft)

   
•
Support the jack to avoid damaging the fuel tank.

13.
Remove the fuel tank (A).

Installation
1.
Install in the reverse order of removal.

    Release Residual Pressure in Fuel Line    • There may be some residual pressure even after "Release Residual Pressure in Fuel Line" work, so cover the hose connection with a shop towel to prevent residual fuel from spilling out before disconnecting any fuel connection.

    Repair procedures Inspection[Fuel Pump]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.

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