Hyundai Ioniq: Fuel Delivery System / Fuel Tank. Repair procedures

Hyundai Ioniq (AE) 2017-2024 Service Manual / Engine Control/Fuel System / Fuel Delivery System / Fuel Tank. Repair procedures

Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the fuel pump service cover (A).

   
When reinstalling a protective cover for a fuel pump, remove the existing butyl tape and apply a new one.
Before assembling the protective cover, ensure that the temperature of the butyl is about 30°C using a hair dryer or a heat gun.

   
When installing the protective cover for the fuel pump, pay attention to the installation direction of the grommet and the protective cover.
The arrow (A) should be in the forward direction of the car.
Align the bulging part of the vehicle body (B) with the hole of the protective cover.
Align the bulging part of the grommet (C) with the bulging part of the protective cover.

4.
Disconnect the fuel pump control module connector (A).
5.
Disconnect the fuel pressure sensor connector (B).
6.
Disconnect the fuel feed tube quick-connector (C).

7.
Lift the vehicle.
8.
Disconnect the vapor tube quick-connector (A).

9.
Disconnect the fuel filler hose hose (A) and vent hose (B).
10.
Disconnect the leveling quick-connector (C).

11.
Support the fuel tank with a jack.
12.
Remove the fuel tank band mounting nut (B)
13.
Remove the fuel tank (C) from the vehicle.

Installation
1.
Install in the reverse order of removal.
Fuel tank band installation nut :
39.2 - 54.0 N.m (4.0 - 5.5 kgf.m, 28.9 - 39.8 lb-ft)

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