Hyundai Tucson: 4 Wheel Drive (4WD) System / Troubleshooting
| Area of leakage occuring | Area | Type |
| â‘ Connecting part/under part of transfer case â‘¡ Connecting part of transmission |
| [A] |
| â‘ Connecting part/under part of transfer case â‘¡ Connecting part of transmission â‘¢ Assembly part of drive shaft |
| [B] |
| Symptom | Expected cause | Countermeasure |
| Oil leakage | Oil leakage on connecting part of transfer case (â‘ ) | Adjustment or replacement, adjustment |
| Oil leakage on under part of transfer case (â‘ ) | Adjustment or replacement, adjustment | |
| Oil leakage trace on connecting part of transmission (â‘¡) | Adjustment | |
| Oil leakage at assembly part of drive shaft (â‘¢) | Adjustment or replacement, adjustment | |
| Upside down the oil seal main lip (â‘¡,â‘¢) | Replacement | |
| Pushed aside oil seal (â‘¡,â‘¢) | Replacement | |
| fallen out oil seal (â‘¡,â‘¢) | 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) 2022-2026 Service Manual: Brake Booster
- Components
1. Reservoir cap2. Reservoir3. Brake booster4. Master cylinder5. Push rod
- Brake Booster Operating Test
1.Run the engine for one or two minutes, and then stop it. If the
pedal depresses fully the first time but gradually becomes higher when
depressed succeeding times, ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: PM Sensor
- Description
Monitor the air quality inside the vehicle in real time (PM sensor) and
display the status on the screen.Automatically operate when fine dust
concentration is high (Condition: Bet mode + A/C ON + 3rd speed or
higher)
- Components Location
1. PM sensor
- Replacement ...
