It is never pleasant to experience a sound in your car that you don’t know the source of. So, what if you detect a loud noise that lasts on your GMC Acadia? It is highly possible that this is a minor trouble, but before beeing sure, it is better to do some investigations. Whether that loud noise comes from the front of the vehicle, from the rear, whether it appears when you accelerate or when you are parked, our team has created this article to help you solve it. First, we will detail the possible reasons for the trouble according to when loud noise appears on your GMC Acadia, and then we will focus on the region of origin of the noise. In any case, if this noise lasts, follow these advice to help you find the origin.
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When does my GMC Acadia generate a loud noise?
One way to identify a noise from your GMC Acadia is to define when it shows up. Indeed, some complications can be related to parts that are only stressed under certain conditions. It is this technique that we will focus on in this first part.
Loud noise GMC Acadia when accelerating
Loud noise on GMC Acadia that appears when you are accelerating can be symptomatic of multiple failures. In fact, if you feel a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will induce a much higher noise than during normal process. Furthermore, it is also highly possible that loud noise on your GMC Acadia is connected to a wheel bearing, which is one of the most common origins 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 trouble 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 GMC Acadia is stopped
If your GMC Acadia makes a loud noise while not accelerating, engine on, the trouble may be related to 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 GMC Acadia and how can I be sure of its origin?
Now that we have identified the source of the noise, we will deal with the verification stage to ensure that this is the concern you are encountering.
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The loud noise comes from the wheels of my GMC Acadia
As we have seen previously, loud noise from the wheels of your GMC Acadia 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 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 change it or them quickly. 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 GMC Acadia that is the matter, 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 mechanic to change the tires or execute a balancing.
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The loud noise comes from the engine of my GMC Acadia
In case you have recognized loud noise as coming from the engine of your GMC Acadia, 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 encounter a power loss during your acceleration. If the loud noise on your GMC Acadia 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 car to your service garage .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have recognized comes from the exhaust pipe of your GMC Acadia, 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 GMC Acadia, 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 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.
