It is never relaxing to hear a sound in your car that you don’t know the source of. So, what if you detect a loud noise that remains on your Peugeot 308? It is very possible that this is a minor trouble, but before beeing sure, it is better to carry out some verifications. Whether that loud noise comes from the front of the vehicle, 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 detail the possible explanations for the trouble according to when loud noise shows up on your Peugeot 308, 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 origin.
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When does my Peugeot 308 produce a loud noise?
One way to identify a noise from your Peugeot 308 is to identify when it appears. Indeed, some concerns can be linked to components that are only stressed under certain types of conditions. It is this process that we will focus on in this first part.
Loud noise Peugeot 308 when accelerating
Loud noise on Peugeot 308 that occurs 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 generate a much higher noise than during normal use. In addition, it is also highly possible that loud noise on your Peugeot 308 is associated with a wheel bearing, which is one of the most common origins 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 trouble 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 Peugeot 308 is stopped
If your Peugeot 308 makes a loud noise while not accelerating, engine on, the trouble 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 Peugeot 308 and how can I be sure of its origin?
Now that we have determined the origin of the noise, we will deal with the verification stage to be certain that this is the concern you are experiencing.
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The loud noise comes from the wheels of my Peugeot 308
As we have seen before, loud noise from the wheels of your Peugeot 308 may be linked 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 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, don’t forget to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Peugeot 308 that is the problem, you will tend to feel a vibration in the direction of the car as you go faster. In both circumstances, you will have to go to your technician to replace the tires or execute a balancing.
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The loud noise comes from the engine of my Peugeot 308
In case you have identified loud noise as coming from the engine of your Peugeot 308, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be connected 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 Peugeot 308 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 trouble, take your car to your garage .
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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 Peugeot 308, 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 Peugeot 308, 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.
