It is never relaxing to hear a noise in your vehicle that you don’t know the starting point of. So, what if you find a loud noise that persists on your Mazda CX 7? It is highly possible that this is a minor issue, but before beeing sure, it is better to accomplish some inspections. 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 content to help you fix it. First, we will describe the possible causes for the issue according to when loud noise shows up on your Mazda CX 7, and then we will concentrate on 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 Mazda CX 7 generate a loud noise?
One way to discern a noise from your Mazda CX 7 is to establish when it shows up. Indeed, some complications can be connected to components that are only stressed under certain circumstances. It is this approach that we will focus on in this first part.
Loud noise Mazda CX 7 when accelerating
Loud noise on Mazda CX 7 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 provoke a much higher noise than during normal operation. Additionally, it is also highly possible that loud noise on your Mazda CX 7 is connected to 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 possible 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 Mazda CX 7 is stopped
If your Mazda CX 7 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 Mazda CX 7 and how can I be sure of its origin?
Now that we have defined the source of the sound, we will concentrate on the verification stage to be certain that this is the matter you are going through.
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The loud noise comes from the wheels of my Mazda CX 7
As we have seen before, loud noise from the wheels of your Mazda CX 7 may be in connection with 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 bear in mind 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 swap 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 Mazda CX 7 that is the issue, you will tend to feel a vibration in the direction of the automobile as you go faster. In both circumstances, you will have to go to your technician to change the tires or perform a balancing.
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The loud noise comes from the engine of my Mazda CX 7
In case you have identified loud noise as coming from the engine of your Mazda CX 7, 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 Mazda CX 7 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 trouble, take your automobile to your service 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 Mazda CX 7, 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 Mazda CX 7, 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 vehicle 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.
