It is never relaxing to find out a noise in your vehicle that you don’t know the origin of. So, what if you discover a loud noise that lasts on your Renault Scenic 2? It is extremely plausible that this is a minor issue, but before beeing sure, it is better to carry out some inspections. Whether that loud noise comes from the front of the car, from the rear, whether it shows up when you accelerate or when you are parked, our team has created this article to help you solve it. First, we will summarize the possible causes for the problem according to when loud noise shows up on your Renault Scenic 2, and then we will look into the region of origin of the noise. In any case, if this noise persists, follow these advice to help you find the origin.
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When does my Renault Scenic 2 make a loud noise?
One way to detect a noise from your Renault Scenic 2 is to determine when it occurs. Indeed, some trouble can be connected to components that are only stressed under certain types of conditions. It is this method that we will focus on in this first part.
Loud noise Renault Scenic 2 when accelerating
Loud noise on Renault Scenic 2 that starts when you are accelerating can be symptomatic of multiple 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 process. In addition, it is also highly plausible that loud noise on your Renault Scenic 2 is connected to a wheel bearing, which is one of the most common causes 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 issue 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 Scenic 2 is stopped
If your Renault Scenic 2 makes a loud noise while not accelerating, engine on, the issue may be linked 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 Scenic 2 and how can I be sure of its origin?
Now that we have found the source of the sound, we will focus on the verification step to make certain that this is the issues you are having.
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The loud noise comes from the wheels of my Renault Scenic 2
As we have seen before, loud noise from the wheels of your Renault Scenic 2 may be linked 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 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 change 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 Scenic 2 that is the issue, 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 auto technician to replace the tires or accomplish a balancing.
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The loud noise comes from the engine of my Renault Scenic 2
In case you have identified loud noise as coming from the engine of your Renault Scenic 2, 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 Renault Scenic 2 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 problems, take your car to your mechanic .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have perceived comes from the exhaust pipe of your Renault Scenic 2, it is highly plausible 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 Scenic 2, 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 car 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.
