It is never pleasant to hear a noise in your car that you don’t know the source of. So, what if you detect a loud noise that is persistant on your Ford Focus? It is highly plausible that this is a minor problem, but before beeing sure, it is better to execute some investigations. Whether that loud noise comes from the front of the car, from the rear, whether it shows up when you accelerate or when you are parked, our team has written this article to help you fix it. First, we will detail the possible reasons for the issue according to when loud noise shows up on your Ford Focus, and then we will look into the region of origin of the noise. In any case, if this noise lasts, follow these advice to help you find the origin.
When does my Ford Focus make a loud noise?
One way to discover a noise from your Ford Focus is to define when it appears. Indeed, some complications can be related to components that are only stressed under certain circumstances. It is this method that we will focus on in this first part.
Loud noise Ford Focus when accelerating
Loud noise on Ford Focus that starts when you are accelerating can be symptomatic of several failures. In fact, if you encounter 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 process. In addition, it is also highly plausible that loud noise on your Ford Focus is related to a wheel bearing, which is one of the most common origins 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 gains speed.
When my Ford Focus is stopped
If your Ford Focus makes a loud noise while not accelerating, engine on, the problem may be linked to poor air intake. An air intake hose that has come loose or has a hole in it may be the induce.
Where does loud noise come from on my Ford Focus and how can I be sure of its origin?
Now that we have determined the source of the sound, we will concentrate on the verification stage to be sure that this is the matter you are enduring.
The loud noise comes from the wheels of my Ford Focus
As we have seen before, loud noise from the wheels of your Ford Focus may be linked 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 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 swap it or them right away. If it is a deformed tire, don’t forget to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Ford Focus 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 mechanic to replace the tires or do a balancing.
The loud noise comes from the engine of my Ford Focus
In case you have discovered loud noise as coming from the engine of your Ford Focus, 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 Ford Focus 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 .
Loud noise comes from the exhaust pipe of the vehicle
If the noise you have recognized comes from the exhaust pipe of your Ford Focus, 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 Ford Focus, 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 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.