It is never enjoyable to hear a noise in your car that you don’t know the starting point of. So, what if you detect a loud noise that is persistant on your Lexus RX? It is highly possible that this is a minor issue, but before beeing sure, it is better to operate some verifications. Whether that loud noise comes from the front of the automobile, from the rear, whether it happens when you accelerate or when you are parked, our team has written this content to help you fix it. First, we will detail the possible causes for the issue according to when loud noise appears on your Lexus RX, and then we will give attention to the region of origin of the noise. In any case, if this noise continues, follow these suggestions to help you find the origin.
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When does my Lexus RX produce a loud noise?
One way to identify a noise from your Lexus RX is to establish when it appears. Indeed, some problems can be linked to parts that are only stressed under certain occasions. It is this technique that we will focus on in this first part.
Loud noise Lexus RX when accelerating
Loud noise on Lexus RX that appears when you are accelerating can be symptomatic of different failures. In fact, if you experience 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. Furthermore, it is also highly possible that loud noise on your Lexus RX is linked to a wheel bearing, which is one of the most common origins of these types of signs of illness. Another alternative is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also possible 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 Lexus RX is stopped
If your Lexus RX makes a loud noise while not accelerating, engine on, the issue may be in connection with poor air intake. An air intake hose that has come loose or has a hole in it may be the induce.
Where does loud noise come from on my Lexus RX and how can I be sure of its origin?
Now that we have identified the cause of the noise, we will look into the verification stage to be certain that this is the matter you are encountering.
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The loud noise comes from the wheels of my Lexus RX
As we have seen before, loud noise from the wheels of your Lexus RX may be in connection with 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 remember 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 change it or them straight 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 Lexus RX that is the problem, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both circumstances, you will have to go to your mechanic to change the tires or accomplish a balancing.
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The loud noise comes from the engine of my Lexus RX
In case you have discovered loud noise as coming from the engine of your Lexus RX, 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 experience a power loss during your acceleration. If the loud noise on your Lexus RX 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 check that the engine idle speed is not random. In case you confirm one of these two disorders, take your vehicle to your service garage .
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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 Lexus RX, it is highly possible that you have rust if your automobile is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Lexus RX, 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 automobile 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.
