It is never pleasant to find out a sound in your automobile that you don’t know the source of. So, what if you identify a loud noise that remains on your Subaru Impreza? It is highly possible that this is a minor problem, but before beeing sure, it is better to operate some checks. 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 made this content to help you solve it. First, we will point out the possible explanations for the issue according to when loud noise shows up on your Subaru Impreza, and then we will focus on the region of origin of the noise. In any case, if this noise persists, follow these instructions to help you find the origin.
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When does my Subaru Impreza produce a loud noise?
One way to identify a noise from your Subaru Impreza is to establish when it appears. Indeed, some concerns can be connected to parts that are only stressed under certain circumstances. It is this method that we will focus on in this first part.
Loud noise Subaru Impreza when accelerating
Loud noise on Subaru Impreza that happens when you are accelerating can be symptomatic of different failures. Indeed, if you experience a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will induce a much higher noise than during normal process. Furthermore, it is also highly possible that loud noise on your Subaru Impreza is in connection with a wheel bearing, which is one of the most common causes of these types of signs of illness. Another alternative 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 increases speed.
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When my Subaru Impreza is stopped
If your Subaru Impreza makes a loud noise while not accelerating, engine on, the problem may be related to poor air intake. An air intake hose that has come loose or has a hole in it may be the cause.
Where does loud noise come from on my Subaru Impreza and how can I be sure of its origin?
Now that we have determined the source of the sound, we will concentrate on the verification step to be certain that this is the matter you are encountering.
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The loud noise comes from the wheels of my Subaru Impreza
As we have seen previously, loud noise from the wheels of your Subaru Impreza may be related to two main disorders. 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 consider to examine 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 change it or them right 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 Impreza that is the trouble, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both cases, you will have to go to your auto mechanic to swap the tires or accomplish a balancing.
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The loud noise comes from the engine of my Subaru Impreza
In case you have identified loud noise as coming from the engine of your Subaru Impreza, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be linked to a compression loss during the engine ramp-up phase, so you should experience a power loss during your acceleration. If the loud noise on your Subaru Impreza is related to air intake, the check 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 cause an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then examine that the engine idle speed is not random. In case you confirm one of these two problems, take your vehicle to your mechanic .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have found comes from the exhaust pipe of your Subaru Impreza, 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 Impreza, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To ensure 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.
