1. Abnormal sound or vibration from the front hub
Worn hub bearing
2. Abnormal sound or vibration from the front drive axle (4WD)
Insufficient differential oil
Incorrect or defective differential oil
- Replace the differential oil.
Excessive or insufficient backlash between the drive pinion and ring gear
Loose drive pinion bearing
- Adjust the drive pinion bearing preload.
Worn drive pinion bearing
- Replace the drive pinion bearing.
Loose differential side bearing
- Adjust the differential side bearing preload.
Worn differential side bearing
- Replace the differential side bearing.
Damaged drive pinion or ring gear
- Replace the drive pinion and ring gear as a set.
Excessive ring gear surface runout
- Replace the drive pinion and ring gear as a set.
Worn drive pinion and ring gear
- Replace the drive pinion and ring gear as a set.
Damaged or worn drive shaft joints and boots (UJ and DOJ)
- Replace the drive shaft joints and boots.