Table of Contents
How do I stop my rear differential from whining?
Following is a simple 9-step guide to quiet differential whine in your car;
- Identify the Noise.
- Change Differential Fluid.
- Change Seals.
- Inspect the Pinion Seal & Rear Differential Gasket.
- Clean the Differential Parts.
- Repair the Faulty Parts.
- Lubricate the Dry Parts.
- Reassemble the Parts.
Why does my rear differential whine?
A whine during deceleration may mean there is a bad or loose pinion bearing. A howl during acceleration may indicate the same problem. Rumble or whining sounds only at speeds greater than 20 mph could be a sign of a worn carrier bearing. The sound may change while cornering.
How do I make my diff quieter?
How to Quiet Differential Whine
- Prep the area.
- Replace Differential Fluid.
- Replace the seal.
- Test the Vehicle.
- Inspect rear differential gasket, pinion seal, and side seal.
- Clean the housing.
- Replace broken parts.
- Lubricate and re-install axle into differential.
What causes rear end howling?
A humming noise is often caused by an incorrectly installed ring and pinion gear that needs to be adjusted. Incorrect installation of the ring and pinion gear prevents proper tooth contact and can cause rapid tooth wear and gear failure.
What does rear differential noise sound like?
The most common rear differential noise is a whirring sound, although it’s not unheard of to have a clunking or banging sound as you accelerate. Both noises indicate worn-out gears, although a banking or clunking noise is much more severe, and you need to address it immediately.
Why is my rear end howling?
If you notice that the howling noise only occurs during deceleration, then it is a good indicator that the pinion-bearing preload has loosened. Howling under acceleration at various speeds, however, indicates that the gears are already worn out or are out of alignment or depth with each other.
Why does my rear differential make noise when accelerating?
If rear differential noise occurs while accelerating the car only at a certain speed, it is likely because the gears have become worn due to overloading and lubrication failure. If your gears are newly installed and still create a howling noise, double-check its preload and make sure that the teeth are properly aligned.
What does it mean when your rear differential whirrs?
Hearing a whirring noise around 10 mph when accelerating or slowing down is likely due to worn or loose pinion bearings. Worn axle shaft splines or chipped gear teeth can lead to a knocking or clicking rear differential noise from the differential.
How do you fix a noisy rear differential?
How to fix a noisy differential: Replacing the differential fluid may stop the sound, or replacing a pinion or side seal may solve the problem. However, once the noise gets bad, rebuilding or replacing the differential may be the best way to fix the noise.
Is it common to misdiagnose rear differential noises?
But, people often misdiagnose rear differential noises, leading to a panic-inducing headache until the repair shop tells you what’s really going on. We’ll walk you through everything you need to know where to properly diagnose rear differential noises and potentially keep you out of the repair shop.