It is never enjoyable to find out a sound in your vehicle that you don’t know the origin of. So, what if you recognize a loud noise that persists on your Mercury Mariner? It is highly 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 appears when you accelerate or when you are parked, our team has written this content to help you fix it. First, we will describe the possible explanations for the problem according to when loud noise shows up on your Mercury Mariner, and then we will look into the region of origin of the noise. In any case, if this noise lasts, follow these suggestions to help you find the source.
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When does my Mercury Mariner make a loud noise?
One way to identify a noise from your Mercury Mariner is to identify when it occurs. Indeed, some trouble can be related to parts that are only stressed under certain circumstances. It is this technique that we will focus on in this first part.
Loud noise Mercury Mariner when accelerating
Loud noise on Mercury Mariner that takes place 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 generate a much higher noise than during normal process. In addition, it is also highly plausible that loud noise on your Mercury Mariner is associated with a wheel bearing, which is one of the most common causes 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 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 Mercury Mariner is stopped
If your Mercury Mariner makes a loud noise while not accelerating, engine on, the issue may be related to poor air intake. An air intake hose that has come loose or has a hole in it may be the reason.
Where does loud noise come from on my Mercury Mariner and how can I be sure of its origin?
Now that we have defined the origin of the sound, we will focus on the verification stage to ensure that this is the concern you are going through.
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The loud noise comes from the wheels of my Mercury Mariner
As we have seen before, loud noise from the wheels of your Mercury Mariner 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 keep in mind 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 replace it or them as soon as possible. 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 Mercury Mariner that is the matter, 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 mechanic to swap the tires or accomplish a balancing.
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The loud noise comes from the engine of my Mercury Mariner
In case you have discovered loud noise as coming from the engine of your Mercury Mariner, 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 Mercury Mariner 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 verify that the engine idle speed is not random. In case you confirm one of these two problems, 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 perceived comes from the exhaust pipe of your Mercury Mariner, 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 Mercury Mariner, 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 starting point 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.
