It is never enjoyable to find out a noise in your vehicle that you don’t know the source of. So, what if you discover a loud noise that is persistant on your Subaru Outback? It is highly possible that this is a minor problem, but before beeing sure, it is better to carry out some inspections. Whether that loud noise comes from the front of the automobile, from the rear, whether it shows up when you accelerate or when you are parked, our team has created this content to help you fix it. First, we will point out the possible causes for the issue according to when loud noise appears on your Subaru Outback, and then we will focus on the region of origin of the noise. In any case, if this noise lasts, follow these recommendations to help you find the origin.
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When does my Subaru Outback produce a loud noise?
One way to discern a noise from your Subaru Outback is to define when it occurs. Indeed, some trouble can be connected to components that are only stressed under certain occasions. It is this approach that we will focus on in this first part.
Loud noise Subaru Outback when accelerating
Loud noise on Subaru Outback that occurs when you are accelerating can be symptomatic of several failures. Indeed, if you feel a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will create a much higher noise than during normal process. Moreover, it is also highly possible that loud noise on your Subaru Outback is connected to a wheel bearing, which is one of the most common causes of these types of signs of illness. Another possibility is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also possible that the problem may come from a deformed tire or an unbalanced wheel that will tend to vibrate as it gains speed.
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When my Subaru Outback is stopped
If your Subaru Outback makes a loud noise while not accelerating, engine on, the problem may be linked to poor air intake. An air intake hose that has come loose or has a hole in it may be the reason.
Where does loud noise come from on my Subaru Outback and how can I be sure of its origin?
Now that we have identified the source of the noise, we will focus on the verification step to ensure that this is the concern you are encountering.
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The loud noise comes from the wheels of my Subaru Outback
As we have seen earlier in this article, loud noise from the wheels of your Subaru Outback may be linked to two main problems. If it is one of your tired bearings, it will tend to make a thumping noise that intensifies when it is under stress (spins faster and faster). So bear in mind to verify by driving “fast” (neutral gear on and window open to hear only the noise of the wheels) that the noise is located here, if this is the case replace it or them straight away. If it is a deformed tire, remember to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Subaru Outback that is the matter, you will tend to feel a vibration in the direction of the car as you go faster. In both situations, you will have to go to your mechanic to replace the tires or perform a balancing.
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The loud noise comes from the engine of my Subaru Outback
In case you have recognized loud noise as coming from the engine of your Subaru Outback, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be connected to a compression loss during the engine ramp-up phase, so you should encounter a power loss during your acceleration. If the loud noise on your Subaru Outback is related to air intake, the control will be done mainly visually, check all your air intake hoses by a visual control in your engine block to be sure that it is not damaged or disconnected which would induce an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then verify that the engine idle speed is not random. In case you confirm one of these two disorders, take your car to your mechanic .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have detected comes from the exhaust pipe of your Subaru Outback, it is highly possible that you have rust if your automobile is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Subaru Outback, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To verify this, get help from someone who will stand under the automobile while you accelerate to find the exact area of origin of this noise. If it is a hole, you can repair it with a putty provided for this purpose, or, if it is a collar, “reattach” it. If it is cut or the hole is too big, it is better to get closer to your mechanic.
