How to Fix Subaru Outback Rear Differential Noise

Subaru Outback Rear Differential Noise
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Are you hearing an unwanted noise from your car? It is tough to solve the problem of solving rear differential noise. This is also another unwanted issue. So, today we will try to inform you about the possible causes of Subaru outback rear differential noise.

Giving the problem statements will not help you to solve it. As a result, along with each problem, we will also suggest possible solutions to how you can overcome such unwanted issues. Usually, the Subaru engine is not prone to problems. Yet, problems can cause at any time.

Now, we would like to invite you to read today’s article to let you know about the possible issues of Subaru outback rear differential noise along with their solutions. So, without any further delay let us get started.

Possible Causes Of Subaru Outback Rear Differential Noise & Fix

Subaru Outback Rear Differential Noise

1. Excessive Problem Standing Inside The Gear

The task of gear is more scientific than general. Gear is used to maintain proper torque inside the engine of the car. To change the movement of a car gear is used heavily. Another important task of the gear is to transmit power to the engine.

Bears can be divided into two portions. When your gear is faulty then you will find a rear differential noise from the Subaru outback. The sound can be rattling and sharp. Sometimes instead of sharp noise, you may hear a growling noise too.

When you are hearing such noises from the outback of your Subaru engine, you have to check the gear immediately. 

Solution: The solution is pretty tough. When you are dealing with your gearbox then you have to check the following things:

  1. Whether fluid leakage is occurring inside your gearbox.
  2. Existence of rumbling inside the neutral.
  3. The gearbox is responsive or not?
  4. Struggling in changing the gear.
  5. Gear slippage has fallen

If you have any of the above issues, that can cause differential noise from the outback rear. We suggest booking an appointment with a good technician. Diagnose the gearbox properly. After finding the exact reason, then you have to repair the gearbox.

Sometimes, you might need to replace the gearbox if the problem is severe. Subaru outback rear differential noise will not be removed until you are not replacing the gearbox. 

Finding a compatible gearbox is not easy. We recommend some of the best gearboxes that are properly compatible with the Subaru engine.

Check The Latest gearbox Price On Amazon

2. Leakage In The Exhaustive System Inside Subaru Engine

The exhaustive system is mainly responsible for emitting unwanted gases from the chamber. The exhaustive system is an important part that also liquidity the gases to provide energy to the engine.

When the exhaustive system is broken, then unexpected gases can not escalate properly. As a result, pressure inside the car engine increases. When pressure extends the standard amount then you can hear unwanted noise.

Exhaustive systems can cause deadly accidents if they are not repaired properly. A rumbling noise is heard loudly if there exists any problem inside the exhaustive system. 

Solution: The exhaustive system of your desired Subaru engine must have to be repaired or replaced quickly. You have to observe whether any leakage is available inside the exhaustive system or not.

Replacing a complete system can be difficult. So, if you need to change the exhaustive system of your car then you have to do it carefully. An expert can change the system precisely. Diagnosis of the exhaustive system should also be done without any delay.

If there is a fluid leakage inside the exhaustive system, then you must have to prevent it by checking all the components properly. Fluid leakage can ignite fire sometimes.

3. Problem Reside Inside The Tires

Though, most people ignore any sort of tire issues. One of the major causes of Subaru outback rear differential noise is the problem available in tires. When the tire is not operating properly you will 

The tires balance the car along with controlling the movement of the car. When tires are faulty then rumbling noise will be heard. Usually, the noise of the tires is differential and annoying.

Solution: Tires play a vital role to prevent road accidents. When your tires are not working as per your requirements, you must have to diagnose the problem. After finding the problem you can decide whether you will change the tires or not.

We analyze some of the best tires for your Subaru car. After analyzing precisely we recommend using the below tires. These tires are not only long-lasting but also very reactive. 

They can stop the car immediately after the emergency brake is used. So, we would like to recommend having a look at the below items. You can easily click on the below link and analyze the products.

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4. A Problematic Suspension System

When we are talking about the control of the joints of different joints the suspension system plays the most vital role. If the suspension system is problematic then a cracking sound will be heard.

The sound must start when you are slowing your car down. Sometimes the sound is also observed when you are accelerating your car too much. If you are facing this issue then you have to understand the problem is inside your suspension system.

Solution: The suspension system must have to be diagnosed with proper safety. A technician can diagnose the suspension system and identify where the actual problem is. If the problem is too much then you have to change the suspension system.

When choosing the best suspension system for your Subaru car you must have to find a compatible suspension system. There are many suspension systems available in the market.

Suspension systems are needed to balance the torque of the car. If the torque is not properly balanced then it can cause any kind of deadly accident.

Related Post: How to Fix Subaru Forester Power Steering Pump Noise


Subaru outback rear differential noise is always annoying. In this article, we have tried to figure out the main reasons behind the problem. Hopefully, the reasons along with the solutions will be helpful for you.

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