When you observe abnormal sounds on your Peugeot 407 you tend to concerns about them. Specifically when you feel a noise when you accelerate on your Peugeot 407. It is immediately assimilated to an engine motor issue and can therefore be serious. As we know that you do not take these disorders lightly, we have decided to compose this article to help you find the causes and eliminate this concern as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Peugeot 407, then what is a whistling or ratling noise at the acceleration of my Peugeot 407, then the origins of a noise that intensifies during acceleration and finally a noise that ends when I stop accelerating.
Ma Peugeot 407 makes a high-pitched noise when I accelerate:
If your Peugeot 407 makes a loud noise when you accelerate, it is quite conceivable that the alternator belt is the induce of your issue. You will need to establish if this noise occurs suddenly and if it can stop as it started. The alternator belt is a wearing part that is employed to supply power to the secondary components of your Peugeot 407’s engine and although it is less important than the timing belt it can generate engine problem if it stops working. This noise may be a symptom of a slackened belt, in which case the tensioner roller or its wear and tear may be at fault. In any case, check the condition of your belt and its tension. If it causes this acceleration noise on Peugeot 407, go to your auto technician.
Ma Peugeot 407 makes whining noise when I accelerate:
- Rattling or whistling noise generated by the turbo
- Humming noise caused by air leakage
If you have a power loss that comes with the rattling noise when you accelerate with your Peugeot 407, it is conceivable that your turbo is screwing up and some of its components are at the end of their life. Examine it and change it if it is the induce, otherwise you risk clogging your engine in the long run. If you discover this blowing or whistling noise on your car, feel free to refer to this document about turbo noises on Peugeot 407, if you would like more details.
If, on the other hand, you do not experience any power loss due to an humming noise on your Peugeot 407, it is more than likely that you have one of your junctions or air hoses that has holes. So check the whole air supply system from your air filter to your engine to discover the starting point of this acceleration sound.
Ma Peugeot 407 makes an increasingly loud noise when I accelerate:
If, on the other hand, you have the feeling that the more you gain speed, the more your noise at acceleration on Peugeot 407 gets loud, then you will have to check the rolling parts of your vehicle. In fact, if this loud noise does not appear when you iddle, it is certainly related to your transmission, and, in general, to your wheels. The most common reason is the state of your bearings, so make sure you check their condition to make sure it is not the reason of this loud noise when you accelerate. If not, go to this content page about the noises related to Peugeot 407 noise wheels.
Ma Peugeot 407 makes a noise when I accelerate that stops when I stop accelerating:
At last, if you experience a noise when accelerating with your Peugeot 407 and this noise which could be a cliking sound tends to stop when you disengage (press the clutch pedal), then one of the wear parts of your clutch system may be the reason. In fact, the clutch release bearings must be replaced approximately every 120 000 / 130 000km. To check it, you just have to see if you have more difficulty than usual shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these symptoms, go to your mechanic to change the clutch release bearings on your Peugeot 407. Look at our article on clutch noise on Peugeot 407 for more information.
