When you identify irregular sounds on your Alfa Romeo 147 you tend to concerns about them. Especially when you feel a noise when you accelerate on your Alfa Romeo 147. It is instantly assimilated to an engine unit issue and can therefore be critical. As we know that you do not take these trouble lightly, we have made a decision to produce this document to help you find the causes and eradicate 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 Alfa Romeo 147, then what is a whistling or ratling noise at the acceleration of my Alfa Romeo 147, then the origins of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating.
Ma Alfa Romeo 147 makes a high-pitched noise when I accelerate:
If your Alfa Romeo 147 makes a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your issue. You will need to determine if this noise occurs abruptly 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 147’s engine and although it is less crucial than the timing belt it can bring about engine troubles if it stops working. This sound may be a symptom 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 Alfa Romeo 147, go to your auto mechanic.
Ma Alfa Romeo 147 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 occurs with the rattling noise when you accelerate with your Alfa Romeo 147, it is conceivable that your turbo is screwing up and some of its components are at the end of their life. Check it and replace it if it is the reason, 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 content page about turbo noises on Alfa Romeo 147, if you would like more details.
If, on the other hand, you do not get any power loss due to an humming noise on your Alfa Romeo 147, 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 discover the source of this acceleration sound.
Ma Alfa Romeo 147 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 Alfa Romeo 147 gets loud, then you will have to check the rolling parts of your vehicle. Indeed, if this loud noise does not emerge when you iddle, it is surely related to your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so make sure to examine their condition to ensure that it is not the reason of this loud noise when you accelerate. If not, go to this content page about the noises related to Alfa Romeo 147 noise wheels.
Ma Alfa Romeo 147 makes a noise when I accelerate that ends when I stop accelerating:
At last, if you experience a noise when accelerating with your Alfa Romeo 147 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. Indeed, the clutch release bearings must be replaced around every 120 000 / 130 000km. To test 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 mechanic to swap the clutch release bearings on your Alfa Romeo 147. Look at our article on clutch noise on Alfa Romeo 147 for more information.
