It is never enjoyable to find out a noise in your car that you don’t know the origin of. So, what if you find a loud noise that persists on your saab 9 3? It is extremely possible that this is a minor problem, but before beeing sure, it is better to do some inspections. Whether that loud noise comes from the front of the vehicle, from the rear, whether it shows up when you accelerate or when you are parked, our team has made this content to help you fix it. First, we will describe the possible causes for the trouble according to when loud noise shows up on your saab 9 3, and then we will concentrate on the region of origin of the noise. In any case, if this noise persists, follow these suggestions to help you find the source.
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When does my saab 9 3 produce a loud noise?
One way to discern a noise from your saab 9 3 is to establish when it occurs. Indeed, some complications can be connected to components that are only stressed under certain conditions. It is this approach that we will focus on in this first part.
Loud noise saab 9 3 when accelerating
Loud noise on saab 9 3 that happens when you are accelerating can be symptomatic of multiple failures. Indeed, if you feel a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will create a much higher noise than during normal operation. Additionally, it is also highly possible that loud noise on your saab 9 3 is related to a wheel bearing, which is one of the most common causes 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 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 saab 9 3 is stopped
If your saab 9 3 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 saab 9 3 and how can I be sure of its origin?
Now that we have uncovered the source of the sound, we will deal with the verification step to ensure that this is the concern you are experiencing.
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The loud noise comes from the wheels of my saab 9 3
As we have seen previously, loud noise from the wheels of your saab 9 3 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 keep 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 replace it or them straight away. If it is a deformed tire, remember to visually check the entire tread area for linearity. If it is the balancing of the wheels of your saab 9 3 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 technician to change the tires or accomplish a balancing.
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The loud noise comes from the engine of my saab 9 3
In case you have identified loud noise as coming from the engine of your saab 9 3, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be connected 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 saab 9 3 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 induce 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 problems, 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 found comes from the exhaust pipe of your saab 9 3, 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 saab 9 3, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To confirm 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.
