Noise when driving with the gear lever in neutral
- Wear of gearbox input shaft bearings (noise goes away when clutch pedal is depressed).
- Release bearing wear (The noise appears when the clutch pedal is depressed and disappears when the clutch pedal is released).
Noise when shifting one of the gears
- The synchronizer of the corresponding gear is worn out.
Difficulty shifting gears
- Faulty clutch.
- Worn or damaged shift rods.
- Gearshift linkage incorrectly adjusted.
- Wear of the synchronizer.
The shift lever does not lock into position
- Worn or damaged shift rod.
- Worn gear shift forks.
- Gearshift linkage incorrectly adjusted.
- Wear of the synchronizer.
Gearbox vibration
- Low oil level in gearbox.
- Worn gearbox shaft bearings.
Gearbox oil leaks
- Transmission output shaft seal leaking.
- Transmission housing connection is leaking.
- The input shaft seal is leaking.