4WD System - General Information: Troubleshooting
| 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 | |
| Oil leakage trace around air bleeder ((4)) | 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.
|
Adjustment or replacement, adjustment |
| Area of leakage occurring | Area | Applied engine |
|---|---|---|
|
R2.0/2.2 Theta 2.0/2.4 Nu 2.0 |
|
| Lambda 3.3/3.5 S 3.0 |
* 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.