It is never relaxing to perceive a noise in your vehicle that you don’t know the origin of. So, what if you recognize a loud noise that is persistant on your Alfa Romeo Giulia? It is highly plausible that this is a minor problem, but before beeing sure, it is better to execute some checks. Whether that loud noise comes from the front of the vehicle, from the rear, whether it happens when you accelerate or when you are parked, our team has written this content to help you solve it. First, we will detail the possible causes for the trouble according to when loud noise appears on your Alfa Romeo Giulia, and then we will focus on the region of origin of the noise. In any case, if this noise lasts, follow these suggestions to help you find the origin.
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When does my Alfa Romeo Giulia produce a loud noise?
One way to find a noise from your Alfa Romeo Giulia is to establish when it occurs. Indeed, some trouble can be linked to parts that are only stressed under certain circumstances. It is this technique that we will focus on in this first part.
Loud noise Alfa Romeo Giulia when accelerating
Loud noise on Alfa Romeo Giulia that shows up 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. Furthermore, it is also highly plausible that loud noise on your Alfa Romeo Giulia is in connection with a wheel bearing, which is one of the most common causes of these types of signs of illness. Another possibility is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also plausible that the problem 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 Alfa Romeo Giulia is stopped
If your Alfa Romeo Giulia makes a loud noise while not accelerating, engine on, the problem 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 cause.
Where does loud noise come from on my Alfa Romeo Giulia and how can I be sure of its origin?
Now that we have determined the cause of the sound, we will look into the verification step to make certain that this is the concern you are enduring.
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The loud noise comes from the wheels of my Alfa Romeo Giulia
As we have seen earlier in this article, loud noise from the wheels of your Alfa Romeo Giulia 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 consider 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 Alfa Romeo Giulia that is the matter, you will tend to feel a vibration in the direction of the car as you go faster. In both situations, you will have to go to your technician to swap the tires or execute a balancing.
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The loud noise comes from the engine of my Alfa Romeo Giulia
In case you have discovered loud noise as coming from the engine of your Alfa Romeo Giulia, 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 Alfa Romeo Giulia 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 disorders, take your car to your mechanic .
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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 Alfa Romeo Giulia, it is highly plausible 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 Alfa Romeo Giulia, 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 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.
