What is making this noise coming from the rear end of my car?


What does a rear end going out sound like?

Regular clunking every few feet can also be an indicator of a broken pinion gear and/or chipped and damaged ring gear. Overly worn out bearings tend to make a howling noise when they do not properly support the gears. Rumbling while turning, on the other hand, is a sign of bad wheel bearings.

What does it sound like when your rear differential is going out?

The most common sound of a failed differential is a whining noise. This is often due to poor lubrication within the differential, meaning there is a good chance that the differential fluid is leaking. If you spot a reddish fluid under the differential, there is certainly a leak.

What does a noisy differential sound like?

Regular “clunking” or loud “clicking” every few feet may indicate a broken ring or pinion gear tooth. “Clunking or clicking” when starting to move or getting on and off the gas might be loose yokes, bad u-joints or worn transfer case or transmission parts.

How do you fix a rear differential noise?

How to Quiet Differential Whine

  1. Prep the area.
  2. Replace Differential Fluid.
  3. Replace the seal.
  4. Test the Vehicle.
  5. Inspect rear differential gasket, pinion seal, and side seal.
  6. Clean the housing.
  7. Replace broken parts.
  8. Lubricate and re-install axle into differential.

How do I know if my rear end is going out?

Typically, when the gears wear out — or the bearings fail — the differential will start to howl. You’ll hear something that sounds like a deep whistling sound that goes up and down in pitch as you go faster and slower. Sometimes it’ll go away when you step on the gas.

How long will a noisy diff last?

To reiterate, in terms of how long can I drive with pinion bearing noise — it can be ten days or ten years. This will highly depend on the condition of the bearing. If it is worse, get it replaced as soon as possible.

How much does it cost to fix a differential?

Most differential repairs will cost between $200 and $400 to repair. Of course, this depends on the severity of the defect and what parts need to be replaced. For a rebuilt differential, you might need to spend between $400 and $1,000. On the other hand, replacing a differential costs $1,000 to $2,000 on average.

What are the symptoms of low differential fluid?

Usually, bad or failing differential oil will produce any of the following 4 symptoms that can alert the driver of a potential problem that should be serviced.

  • Vehicle Exceeds Gear Oil Service Interval. …
  • Whining Differential or Transmission. …
  • Gearbox/Transmission Slipping Gears Jerking.

How do you know if your ring and pinion is bad?

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What causes clunking sound in rear end?

Older rear-wheel-drive vehicles with a live rear axle and coil springs may have what’s called a panhard rod that runs diagonally from the chassis to one side of the axle housing. The rod’s bushings are a likely source of a clunking noise. Worn-out shocks or struts are also common culprits here.

Can low differential fluid cause noise?

Strange noise



A common symptom of differential low on a fluid is a weird humming, howling, whining, and whining noise from either front or rear differential. You’ll notice a gradual change in these noises when accelerating, decelerating, and when taking corners.

Can Bad differential fluid cause noise?

Another symptom of a bad differential oil is whirring, whining, or howling strange noises, indicating that the metal part, clutches, gears, and differentials have not been lubricated due to a dirty lack of clean oil.