When you observe unusual sounds on your Opel Astra you tend to stress about them. Especially when you feel a noise when you accelerate on your Opel Astra. It is instantly assimilated to an engine issue and can therefore be critical. As we know that you do not take these problems lightly, we have decided to compose this content page to support you find the causes and eradicate 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 Opel Astra, then what is a whistling or ratling noise at the acceleration of my Opel Astra, then the origins of a noise that intensifies during acceleration and at last a noise that ends when I stop accelerating.
Ma Opel Astra makes a high-pitched noise when I accelerate:
If your Opel Astra produces a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your issue. You will need to define if this noise shows up 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 Opel Astra’s engine and although it is less important than the timing belt it can induce engine troubles if it stops working. This sound 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, examine the condition of your belt and its tension. If it causes this acceleration noise on Opel Astra, go to your auto mechanic.
Ma Opel Astra makes whining noise when I accelerate:
- Rattling or whistling noise created by the turbo
- Humming noise caused by air leakage
If you have a power loss that accompanies the rattling noise when you accelerate with your Opel Astra, it is conceivable that your turbo is screwing up and some of its components are at the end of their life. Examine it and replace it if it is the reason, otherwise you risk clogging your engine in the long run. If you perceive this blowing or whistling sound on your car, feel free to refer to this article about turbo noises on Opel Astra, 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 Opel Astra, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the entire air supply system from your air filter to your engine to locate the source of this acceleration sound.
Ma Opel Astra produces 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 Opel Astra gets loud, then you will have to check the rolling parts of your car. In fact, if this loud noise does not show up when you iddle, it is certainly linked to your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so make sure you examine their condition to ensure that it is not the reason of this loud noise when you accelerate. If not, go to this article about the noises related to Opel Astra noise wheels.
Ma Opel Astra makes a noise when I accelerate that ceases when I stop accelerating:
At last, if you experience a noise when accelerating with your Opel Astra 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 swapped 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 technician to swap the clutch release bearings on your Opel Astra. Read our article on clutch noise on Opel Astra for more information.
