It is never relaxing to experience a noise in your car that you don’t know the source of. So, what if you find a loud noise that lasts on your Volvo Xc40? It is very plausible that this is a minor problem, but before beeing sure, it is better to execute 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 article to help you solve it. First, we will point out the possible reasons for the trouble according to when loud noise shows up on your Volvo Xc40, and then we will give attention to the region of origin of the noise. In any case, if this noise remains, follow these instructions to help you find the source.
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When does my Volvo Xc40 generate a loud noise?
One way to detect a noise from your Volvo Xc40 is to determine when it occurs. Indeed, some trouble can be connected to components that are only stressed under certain circumstances. It is this technique that we will focus on in this first part.
Loud noise Volvo Xc40 when accelerating
Loud noise on Volvo Xc40 that takes place when you are accelerating can be symptomatic of several failures. Indeed, if you experience a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will provoke a much higher noise than during normal operation. Furthermore, it is also highly plausible that loud noise on your Volvo Xc40 is connected to a wheel bearing, which is one of the most common origins of these types of symptoms. Another alternative is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also plausible 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 Volvo Xc40 is stopped
If your Volvo Xc40 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 induce.
Where does loud noise come from on my Volvo Xc40 and how can I be sure of its origin?
Now that we have uncovered the source of the sound, we will focus on the verification stage to be sure that this is the concern you are having.
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The loud noise comes from the wheels of my Volvo Xc40
As we have seen earlier in this article, loud noise from the wheels of your Volvo Xc40 may be related to two main complications. 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 swap it or them as soon as possible. If it is a deformed tire, make sure to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Volvo Xc40 that is the matter, you will tend to feel a vibration in the direction of the automobile as you go faster. In both circumstances, you will have to go to your auto mechanic to swap the tires or do a balancing.
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The loud noise comes from the engine of my Volvo Xc40
In case you have identified loud noise as coming from the engine of your Volvo Xc40, 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 Volvo Xc40 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 cause 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 automobile to your garage .
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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 Volvo Xc40, it is highly plausible 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 Volvo Xc40, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To confirm 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.
