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 Service Manual: Troubleshooting
- Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptomProbable causeRemedy
The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed sensor circuitRepair ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: In Case of an Emergency While Driving
If the Engine Stalls While Driving
• Reduce the speed gradually, keeping
a straight line. Move cautiously off the
road to a safe place.
• Turn on your hazard warning flasher.
• Try to start the engine again. If your
vehicle does not start, contact an
authorized HYUNDAI deal ...
