It is never relaxing to experience a sound in your car that you don’t know the origin of. So, what if you recognize a loud noise that is persistant on your Renault Laguna? It is highly possible that this is a minor problem, but before beeing sure, it is better to accomplish some checks. Whether that loud noise comes from the front of the car, from the rear, whether it happens when you accelerate or when you are parked, our team has made this content to help you fix it. First, we will detail the possible reasons for the problem according to when loud noise appears on your Renault Laguna, and then we will look into 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 Renault Laguna make a loud noise?
One way to identify a noise from your Renault Laguna is to determine when it appears. Indeed, some complications can be connected to components that are only stressed under certain occasions. It is this technique that we will focus on in this first part.
Loud noise Renault Laguna when accelerating
Loud noise on Renault Laguna that starts when you are accelerating can be symptomatic of different failures. Indeed, if you encounter 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. Moreover, it is also highly possible that loud noise on your Renault Laguna is related to a wheel bearing, which is one of the most common origins of these types of manifestations. 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.
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When my Renault Laguna is stopped
If your Renault Laguna 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 Renault Laguna and how can I be sure of its origin?
Now that we have located the origin of the sound, we will focus on the verification step to make sure that this is the concern you are enduring.
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The loud noise comes from the wheels of my Renault Laguna
As we have seen before, loud noise from the wheels of your Renault Laguna 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 replace it or them right away. 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 Renault Laguna that is the matter, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both situations, you will have to go to your auto mechanic to swap the tires or perform a balancing.
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The loud noise comes from the engine of my Renault Laguna
In case you have recognized loud noise as coming from the engine of your Renault Laguna, 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 experience a power loss during your acceleration. If the loud noise on your Renault Laguna 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 noticed comes from the exhaust pipe of your Renault Laguna, it is highly possible that you have rust if your car is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Renault Laguna, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To validate this, get help from someone who will stand under the car while you accelerate to find the exact area of source 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.
