It is never enjoyable to find out a noise in your automobile that you don’t know the origin of. So, what if you recognize a loud noise that lasts on your Chevrolet Cobalt? It is extremely plausible that this is a minor issue, but before beeing sure, it is better to carry out some inspections. 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 fix it. First, we will detail the possible causes for the trouble according to when loud noise shows up on your Chevrolet Cobalt, and then we will give attention to the region of origin of the noise. In any case, if this noise persists, follow these instructions to help you find the source.
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When does my Chevrolet Cobalt make a loud noise?
One way to identify a noise from your Chevrolet Cobalt is to determine when it appears. Indeed, some concerns can be related to parts that are only stressed under certain conditions. It is this approach that we will focus on in this first part.
Loud noise Chevrolet Cobalt when accelerating
Loud noise on Chevrolet Cobalt that occurs when you are accelerating can be symptomatic of different failures. Indeed, if you feel a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will cause a much higher noise than during normal process. In addition, it is also highly plausible that loud noise on your Chevrolet Cobalt is connected to a wheel bearing, which is one of the most common origins 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 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 Chevrolet Cobalt is stopped
If your Chevrolet Cobalt 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 cause.
Where does loud noise come from on my Chevrolet Cobalt and how can I be sure of its origin?
Now that we have determined the origin of the noise, we will deal with the verification step to ensure that this is the issues you are having.
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The loud noise comes from the wheels of my Chevrolet Cobalt
As we have seen earlier in this article, loud noise from the wheels of your Chevrolet Cobalt may be related to two main problems. 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 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 straight 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 Chevrolet Cobalt that is the matter, you will tend to feel a vibration in the direction of the automobile as you go faster. In both situations, you will have to go to your mechanic to replace the tires or accomplish a balancing.
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The loud noise comes from the engine of my Chevrolet Cobalt
In case you have identified loud noise as coming from the engine of your Chevrolet Cobalt, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be associated 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 Chevrolet Cobalt 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 induce 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 automobile 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 Chevrolet Cobalt, 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 Chevrolet Cobalt, 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 vehicle while you accelerate to find the exact area of origin 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.
