abnormal noise and vibration from rear axle

1. Abnormal noise and vibration from rear axle diagnostics

1. Abnormal sound from the rear axle

1) Abnormal noise at the vehicle runtime

Insufficient differential oil

Add differential oil.

Incorrect or defective differential oil

Replace the differential oil.

Excessive or insufficient backlash between the drive pinion and ring gear

Adjust the backlash.

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.

2) Abnormal noise during inertia travel of the vehicle

Insufficient backlash of the drive pinion and ring gear

Adjust the backlash.

Damaged drive pinion gear or ring gear

Replace the ring gear and drive pinion gear as a set.

3) Intermittent noise

Excessive play of the rear axle shaft spline

Replace the rear axle shaft.

Distorted ring gear

Replace the drive pinion and ring gear as a set.

Loose differential cage bolt

Tighten the differential cage bolt.

Foreign material in the axle case

Remove any foreign material.

4) Abnormal sound during vehicle turning

Worn rear axle shaft spline

Replace the rear axle shaft.

Worn side gear

Replace the side gear.

Worn differential cage pinion gear

Replace the pinion gear of the differential cage.

Worn differential cage cross pin

Replace the cross pin of the differential cage.

5) Abnormal noise is heard when normal.

Bent rear axle shaft

Replace the rear axle shaft.

Worn drive pinion gear and ring gear

Replace the drive pinion and ring gear as a set.

Worn drive pinion bearing or side bearing

Replace the drive pinion bearing or side bearing.

2. Vibration from the rear axle

Worn rear hub bearing

Replace the rear hub bearing.

Bent rear axle shaft

Replace the rear axle shaft.