It is never relaxing to perceive a noise in your vehicle that you don’t know the source of. So, what if you discover a loud noise that lasts on your Citroen C4 Cactus? It is extremely plausible that this is a minor problem, but before beeing sure, it is better to do some investigations. Whether that loud noise comes from the front of the car, from the rear, whether it happens when you accelerate or when you are parked, our team has written 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 Citroen C4 Cactus, 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 origin.
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When does my Citroen C4 Cactus make a loud noise?
One way to identify a noise from your Citroen C4 Cactus is to identify when it shows up. Indeed, some concerns can be linked to parts that are only stressed under certain occasions. It is this technique that we will focus on in this first part.
Loud noise Citroen C4 Cactus when accelerating
Loud noise on Citroen C4 Cactus that takes place when you are accelerating can be symptomatic of different 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. Additionally, it is also highly plausible that loud noise on your Citroen C4 Cactus is linked to a wheel bearing, which is one of the most common causes of these types of manifestations. 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 increases speed.
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When my Citroen C4 Cactus is stopped
If your Citroen C4 Cactus makes a loud noise while not accelerating, engine on, the problem 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 Citroen C4 Cactus and how can I be sure of its origin?
Now that we have uncovered the origin of the sound, we will deal with the verification step to make sure that this is the matter you are going through.
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The loud noise comes from the wheels of my Citroen C4 Cactus
As we have seen earlier in this article, loud noise from the wheels of your Citroen C4 Cactus may be related 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 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 as soon as possible. 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 Citroen C4 Cactus that is the trouble, you will tend to feel a vibration in the direction of the car as you go faster. In both cases, you will have to go to your mechanic to replace the tires or do a balancing.
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The loud noise comes from the engine of my Citroen C4 Cactus
In case you have recognized loud noise as coming from the engine of your Citroen C4 Cactus, 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 Citroen C4 Cactus 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 cause 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 Citroen C4 Cactus, it is highly plausible 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 Citroen C4 Cactus, 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 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.
