Hyundai Tucson: Fuel Delivery System / 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.4) and ground (No.5)
| Pin No | Discription |
| 1 | Fuel sender signal |
| 2 | - |
| 3 | Fuel sender ground |
| 4 | Fuel pump (+) |
| 5 | Fuel pump (-) |
1.Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.Remove the fuel pump assembly.
3.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 signal |
| 2 | - |
| 3 | Fuel sender ground |
| 4 | Fuel pump (+) |
| 5 | Fuel pump (-) |
4.Also check that the resistance changes smoothly when the float is moved from "E" to "F".
| Position | Resistance (Ω) | Capacity (ℓ) |
| E | 298 - 305 | 2.5 |
| 1/2 | 85.5 - 87.5 | 27.2 |
| F | 14 - 16 | 51.8 |
1.Release the residual pressure in fuel line.(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.Turn the ignition switch OFF and disconnect the battery (-) terminal.
3.Remove the rear seat assembly.(Refer to Body (Interior and Exterior) - "Rear Seat Assembly")
4.Remove the fuel pump service cover (A) after loosening the screw.
5.Disconnect the fuel tank pressure sensor connector (A).
6.Disconnect the fuel pump connector (B).
7.Disconnect the fuel feed tube quick connector (C).
8.Remove the locking ring (A) by using the special service tool (B) [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.
1.Install in the reverse order of removal.
Fuel Tank
- Removal
• Be careful not to damage the parts located under the vehicle
(floor under cover, canister, fuel tank) when raising the vehicle using
the lift.(Refer to General ...
Fuel Filter
- Removal
1.Remove the fuel pump.(Refer to Fuel Delivery System - "Fuel Pump")
2.Disconnect the fuel sender connector (A).
3.Release the fixing hook (A) and then remove fuel sender (B) in the ...
Other information:
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Conditions that Restart the
Engine
The engine is automatically restarted if:
The brake vacuum pressure is low.
The engine has stopped for about 5
minutes.
The air conditioning is ON with the fan
speed set to a certain high level.
The front defroster is ON.
The battery is weak.
The cooling and heating performance
...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Engine Compartment Panel Fuse
Replacement
Blade fuse/Cartridge fuse
1. Turn off the vehicle.
2. Turn off all other switches.
3. Remove the fuse panel cover by
pressing the tap and pulling up.
4. Refer to the label on the inside of
the fuse panel cover to locate the
suspected fuse location.
5. Pull the suspected fuse straight ou ...
