When you detect unusual sounds on your Alfa Romeo 159 you tend to concerns about them. Specifically when you feel a noise when you accelerate on your Alfa Romeo 159. It is instantly assimilated to an engine motor problem and can therefore be considerable. As we know that you do not take these problems lightly, we have made a decision to compose this article to support you find the causes and get rid of this matter as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Alfa Romeo 159, then what is a whistling or ratling noise at the acceleration of my Alfa Romeo 159, then the sources of a noise that intensifies during acceleration and finally a noise that ends when I stop accelerating.
Ma Alfa Romeo 159 makes a high-pitched noise when I accelerate:
If your Alfa Romeo 159 generates a loud noise when you accelerate, it is quite possible that the alternator belt is the cause of your problem. You will need to define if this noise appears 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 Alfa Romeo 159’s engine and although it is less crucial than the timing belt it can cause engine troubles if it fails. This sound 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 Alfa Romeo 159, go to your auto technician.
Ma Alfa Romeo 159 makes whining noise when I accelerate:
- Rattling or whistling noise caused 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 Alfa Romeo 159, it is conceivable that your turbo is failing and some of its components are at the end of their life. Verify it and change it if it is the cause, otherwise you risk clogging your engine in the long run. If you find out this blowing or whistling sound on your car, feel free to read this document about turbo noises on Alfa Romeo 159, 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 Alfa Romeo 159, 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 determine the starting point of this acceleration sound.
Ma Alfa Romeo 159 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 Alfa Romeo 159 gets loud, then you will have to check the rolling parts of your vehicle. In fact, if this loud noise does not show up when you iddle, it is surely linked to your transmission, and, in general, to your wheels. The most basic reason is the state of your bearings, so make sure you check their state to be sure it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to Alfa Romeo 159 noise wheels.
Ma Alfa Romeo 159 creates a noise when I accelerate that ends when I stop accelerating:
To finish, if you encounter a noise when accelerating with your Alfa Romeo 159 and this noise which could be a cliking sound tends to reduce 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 test 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 manifestations, go to your technician to swap the clutch release bearings on your Alfa Romeo 159. Read our article on clutch noise on Alfa Romeo 159 for more information.
