Hyundai Tucson: 4 Wheel Drive (4WD) System / Troubleshooting
| Area of leakage occuring | Area | Type |
| ① Connecting part/under part of transfer case ② Connecting part of transmission |
| [A] |
| ① Connecting part/under part of transfer case ② Connecting part of transmission ③ Assembly part of drive shaft |
| [B] |
| Symptom | Expected cause | Countermeasure |
| Oil leakage | Oil leakage on connecting part of transfer case (①) | Adjustment or replacement, adjustment |
| Oil leakage on under part of transfer case (①) | Adjustment or replacement, adjustment | |
| Oil leakage trace on connecting part of transmission (②) | Adjustment | |
| Oil leakage at assembly part of drive shaft (③) | Adjustment or replacement, adjustment | |
| Upside down the oil seal main lip (②,③) | Replacement | |
| Pushed aside oil seal (②,③) | Replacement | |
| fallen out oil seal (②,③) | Replacement | |
| Spline abrasion (check whether spline at transmission has abrasion or not) | Adjustment or replacement, adjustment | |
| Noise | "Repeated clicking noise" noise while driving | Adjustment |
| "Repeated tapping noise" noise from under the vehicle while full turn circling | Adjustment | |
| "Clunking noise" noise when the vehicle accelerate rapidly or braking rapidly. - Spline abrasion (check whether spline at transmission has abrasion or not) | Adjustment or replacement, adjustment |
• ※ Range of "adjustment"
• Clean out the oil or trace of grease leakage
• Check whether engine or transmission has oil leakage and oil flow down or not.
• Check the parts that is related to trouble area.
Specifications
- Specifications
Tightening Torques
ItemsN.mKgf.mlb-ft
Transfer assembly mounting bolts60.8 - 65.76.2 - 6.744.8 - 48.5
4WD ECM mounting nuts9.8 - 11.81.0 - 1.27.2 - 8.7
Coupling assembly mount ...
Other information:
Hyundai Tucson (NX4) 2022-2025 Service Manual: Head Lamp Leveling Switch
- Circuit diagram
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel")
3.Loosen the mounting screw and remove the crash pad garnish [LH] (A).
4.Loosen the mounting screws and remove the crash pad lowe ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Door Step Trim
- Component Location
1. Front door step trim2. Rear door step trim
- Replacement
• When prying with a flat-tip screwdriver, wrap it with protective
tape, and apply protective tape around the related parts, to prevent
damage.
• Put on gloves to protect you ...
