It is never pleasant to experience a noise in your automobile that you don’t know the origin of. So, what if you recognize a loud noise that persists on your Renault Grand Scenic 4? It is extremely plausible that this is a minor issue, but before beeing sure, it is better to operate some inspections. 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 written this article to help you solve it. First, we will summarize the possible reasons for the issue according to when loud noise appears on your Renault Grand Scenic 4, and then we will concentrate on the region of origin of the noise. In any case, if this noise remains, follow these recommendations to help you find the source.
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When does my Renault Grand Scenic 4 generate a loud noise?
One way to detect a noise from your Renault Grand Scenic 4 is to determine when it occurs. Indeed, some problems can be related to components that are only stressed under certain conditions. It is this process that we will focus on in this first part.
Loud noise Renault Grand Scenic 4 when accelerating
Loud noise on Renault Grand Scenic 4 that takes place when you are accelerating can be symptomatic of multiple failures. In fact, if you encounter 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 process. Moreover, it is also highly plausible that loud noise on your Renault Grand Scenic 4 is associated with 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 plausible that the issue 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 Renault Grand Scenic 4 is stopped
If your Renault Grand Scenic 4 makes a loud noise while not accelerating, engine on, the issue may be connected 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 Grand Scenic 4 and how can I be sure of its origin?
Now that we have identified the origin of the sound, we will focus on the verification stage to make sure that this is the concern you are going through.
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The loud noise comes from the wheels of my Renault Grand Scenic 4
As we have seen before, loud noise from the wheels of your Renault Grand Scenic 4 may be connected to two main trouble. 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 check 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, make sure to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Renault Grand Scenic 4 that is the trouble, 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 replace the tires or perform a balancing.
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The loud noise comes from the engine of my Renault Grand Scenic 4
In case you have recognized loud noise as coming from the engine of your Renault Grand Scenic 4, 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 Grand Scenic 4 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 generate an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then check that the engine idle speed is not random. In case you confirm one of these two disorders, take your vehicle 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 Renault Grand Scenic 4, 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 Grand Scenic 4, 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 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.
