When you detect abnormal noises on your Citroen Grand C4 Picasso you tend to stress about them. Specifically when you feel a noise when you accelerate on your Citroen Grand C4 Picasso. It is immediately assimilated to an engine issue and can therefore be significant. As we know that you do not take these problems lightly, we have made a decision to create this content page to help you find the causes and eliminate this issues as quickly as possible. To do this, we will first see what are the oeigins of a high pitched noise when accelerating with my Citroen Grand C4 Picasso, then what is a whistling or ratling noise at the acceleration of my Citroen Grand C4 Picasso, then the sources of a noise that intensifies during acceleration and at last a noise that stops when I stop accelerating.
Ma Citroen Grand C4 Picasso makes a high-pitched noise when I accelerate:
If your Citroen Grand C4 Picasso generates a loud noise when you accelerate, it is quite plausible that the alternator belt is the reason of your issue. You will need to define if this noise takes place suddenly and if it can stop as it started. The alternator belt is a wearing part that is used to bring power to the secondary components of your Citroen Grand C4 Picasso’s engine and although it is less crucial than the timing belt it can induce engine failure if it fails. This noise may be a sign of a slackened belt, in which case the tensioner roller or its wear and tear may be responsible. In any case, check the state of your belt and its tension. If it causes this acceleration noise on Citroen Grand C4 Picasso, go to your technician.
Ma Citroen Grand C4 Picasso 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 Citroen Grand C4 Picasso, it is possible that your turbo is screwing up and some of its parts are at the end of their life. Check it and change it if it is the reason, otherwise you risk blockage your engine in the long run. If you listen to this blowing or whistling noise on your car, feel free to read this content page about turbo noises on Citroen Grand C4 Picasso, if you would like more info.
If, on the other hand, you do not experience any power loss due to an humming noise on your Citroen Grand C4 Picasso, it is more than likely that you have one of your junctions or air hoses that has holes. So check the complete air supply system from your air filter to your engine to discover the origin of this acceleration sound.
Ma Citroen Grand C4 Picasso 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 Citroen Grand C4 Picasso gets loud, then you will have to look at the rolling parts of your vehicle. Indeed, if this loud noise does not surface when you iddle, it is necessarily in connection with your transmission, and, in general, to your wheels. The most known cause is the state of your bearings, so remember to check their state to make sure it is not the cause of this loud noise when you accelerate. If not, go to this content page about the noises related to Citroen Grand C4 Picasso noise wheels.
Ma Citroen Grand C4 Picasso makes a noise when I accelerate that ends when I stop accelerating:
To finish, if you encounter a noise when accelerating with your Citroen Grand C4 Picasso 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 cause. Indeed, the clutch release bearings must be swapped approximately every 120 000 / 130 000km. To check it, you just have to see if you have more difficulty than usually shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these manifestations, go to your technician to change the clutch release bearings on your Citroen Grand C4 Picasso. Read our article on clutch noise on Citroen Grand C4 Picasso for more information.
