When you find out about irregular noises on your Peugeot 406 you tend to worry about them. Especially when you feel a noise when you accelerate on your Peugeot 406. It is instantly assimilated to an engine unit issue and can therefore be serious. As we know that you do not take these trouble lightly, we have chosen to compose this content to help you find the causes and get rid of this concern as quickly as possible. To do this, we will first see what are the causes of a high pitched noise when accelerating with my Peugeot 406, then what is a whistling or ratling noise at the acceleration of my Peugeot 406, then the sources of a noise that intensifies during acceleration and finally a noise that ceases when I stop accelerating.noise-when-acceleratingpeugeot-406

Ma Peugeot 406 makes a high-pitched noise when I accelerate:

If your Peugeot 406 generates a loud noise when you accelerate, it is quite plausible that the alternator belt is the induce of your issue. You will need to establish if this noise takes place abruptly and if it can stop as it started. The alternator belt is a wearing part that is utilized to carry power to the secondary components of your Peugeot 406’s engine and although it is less crucial than the timing belt it can bring about engine problem if it fails. This sound may be a indicator of a slackened belt, in which case the tensioner roller or its wear and tear may be responsible. In any case, examine the state of your belt and its tension. If it causes this acceleration noise on Peugeot 406, go to your auto technician.

Ma Peugeot 406 makes whining noise when I accelerate:

  • Rattling or whistling noise caused by the turbo
  • If you have a power loss that accompanies the rattling noise when you accelerate with your Peugeot 406, it is possible that your turbo is screwing up and some of its elements are at the end of their life. Verify it and replace it if it is the induce, otherwise you risk blockage your engine in the long run. If you notice this blowing or whistling sound on your car, feel free to read this document about turbo noises on Peugeot 406, if you would like more details.

  • Humming noise caused by air leakage
  • If, on the other hand, you do not get any power loss due to an humming noise on your Peugeot 406, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the whole air supply system from your air filter to your engine to determine the origin of this acceleration sound.

Ma Peugeot 406 generates 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 406 gets loud, then you will have to check out the rolling parts of your automobile. In fact, if this loud noise does not show up when you iddle, it is necessarily linked to your transmission, and, in general, to your wheels. The most basic reason is the state of your bearings, so remember to examine their condition to be sure it is not the reason of this loud noise when you accelerate. If not, go to this article about the noises related to Peugeot 406 noise wheels.

Ma Peugeot 406 produces a noise when I accelerate that ceases when I stop accelerating:

At last, if you experience a noise when accelerating with your Peugeot 406 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 almost every 120 000 / 130 000km. To evaluate it, you just have to see if you have more difficulty than every time shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these signs of illness, go to your auto technician to replace the clutch release bearings on your Peugeot 406. Go through our article on clutch noise on Peugeot 406 for more information.