It is never enjoyable to hear a sound in your car that you don’t know the source of. So, what if you identify a loud noise that persists on your Volvo S90? It is extremely possible that this is a minor problem, but before beeing sure, it is better to carry out some checks. Whether that loud noise comes from the front of the vehicle, from the rear, whether it happens when you accelerate or when you are parked, our team has made this content to help you solve it. First, we will describe the possible causes for the issue according to when loud noise appears on your Volvo S90, and then we will focus on the region of origin of the noise. In any case, if this noise remains, follow these advice to help you find the origin.
When does my Volvo S90 generate a loud noise?
One way to detect a noise from your Volvo S90 is to define when it appears. Indeed, some problems can be connected to parts that are only stressed under certain occasions. It is this process that we will focus on in this first part.
Loud noise Volvo S90 when accelerating
Loud noise on Volvo S90 that takes place when you are accelerating can be symptomatic of multiple 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 use. Furthermore, it is also highly possible that loud noise on your Volvo S90 is related to a wheel bearing, which is one of the most common causes of these types of symptoms. 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 increases speed.
When my Volvo S90 is stopped
If your Volvo S90 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 Volvo S90 and how can I be sure of its origin?
Now that we have located the source of the sound, we will look into the verification stage to make sure that this is the concern you are enduring.
The loud noise comes from the wheels of my Volvo S90
As we have seen before, loud noise from the wheels of your Volvo S90 may be related 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 keep 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 change it or them quickly. If it is a deformed tire, don’t forget to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Volvo S90 that is the problem, 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 change the tires or accomplish a balancing.
The loud noise comes from the engine of my Volvo S90
In case you have identified loud noise as coming from the engine of your Volvo S90, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be associated with 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 Volvo S90 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 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 automobile to your mechanic .
Loud noise comes from the exhaust pipe of the vehicle
If the noise you have detected comes from the exhaust pipe of your Volvo S90, it is highly possible that you have rust if your vehicle is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Volvo S90, 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 vehicle while you accelerate to find the exact area of starting point 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.