It is never pleasant to hear a sound in your automobile that you don’t know the cause of. So, what if you recognize a loud noise that continues on your Chevrolet Malibu? It is very possible that this is a minor trouble, but before beeing sure, it is better to complete some investigations. 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 created this content to help you fix it. First, we will summarize the possible explanations for the issue according to when loud noise shows up on your Chevrolet Malibu, and then we will concentrate on the region of origin of the noise. In any case, if this noise continues, follow these advice to help you find the source.
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When does my Chevrolet Malibu make a loud noise?
One way to identify a noise from your Chevrolet Malibu is to determine when it occurs. Indeed, some concerns can be connected to parts that are only stressed under certain conditions. It is this method that we will focus on in this first part.
Loud noise Chevrolet Malibu when accelerating
Loud noise on Chevrolet Malibu that takes place when you are accelerating can be symptomatic of several 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 use. Moreover, it is also highly possible that loud noise on your Chevrolet Malibu is in connection with a wheel bearing, which is one of the most common causes of these types of manifestations. Another alternative 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 gains speed.
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When my Chevrolet Malibu is stopped
If your Chevrolet Malibu makes a loud noise while not accelerating, engine on, the trouble may be connected 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 Chevrolet Malibu and how can I be sure of its origin?
Now that we have determined the origin of the sound, we will concentrate on the verification step 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 Chevrolet Malibu
As we have seen before, loud noise from the wheels of your Chevrolet Malibu may be connected to two main complications. 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 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 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 Chevrolet Malibu that is the problem, 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 technician to change the tires or execute a balancing.
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The loud noise comes from the engine of my Chevrolet Malibu
In case you have discovered loud noise as coming from the engine of your Chevrolet Malibu, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be linked 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 Chevrolet Malibu 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 verify that the engine idle speed is not random. In case you confirm one of these two disorders, take your car to your 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 Chevrolet Malibu, it is highly possible 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 Chevrolet Malibu, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To verify 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.
