When you detect unusual sounds on your Opel Astra 5 you tend to worry about them. Especially when you feel a noise when you accelerate on your Opel Astra 5. It is immediately assimilated to an engine trouble and can therefore be serious. As we know that you do not take these problems lightly, we have made a decision to compose this content to help you find the causes and eradicate this issues as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Opel Astra 5, then what is a whistling or ratling noise at the acceleration of my Opel Astra 5, then the sources of a noise that intensifies during acceleration and finally a noise that stops when I stop accelerating.
Ma Opel Astra 5 makes a high-pitched noise when I accelerate:
If your Opel Astra 5 makes a loud noise when you accelerate, it is quite plausible that the alternator belt is the induce of your trouble. You will need to identify if this noise happens suddenly and if it can stop as it started. The alternator belt is a wearing part that is used to get power to the secondary components of your Opel Astra 5’s engine and although it is less crucial than the timing belt it can generate engine troubles if it fails. This sound may be a sign of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. In any case, verify the state of your belt and its tension. If it causes this acceleration noise on Opel Astra 5, go to your technician.
Ma Opel Astra 5 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 occurs with the rattling noise when you accelerate with your Opel Astra 5, it is plausible that your turbo is screwing up and some of its parts are at the end of their life. Examine it and change it if it is the induce, otherwise you risk clogging your engine in the long run. If you listen to this blowing or whistling sound on your car, feel free to refer to this content about turbo noises on Opel Astra 5, if you would like more details.
If, on the other hand, you do not feel any power loss due to an humming noise on your Opel Astra 5, it is more than likely that you have one of your junctions or air hoses that has holes. So verify the entire air supply system from your air filter to your engine to discover the source of this acceleration sound.
Ma Opel Astra 5 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 Opel Astra 5 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 necessarily connected to your transmission, and, in general, to your wheels. The most regular reason is the state of your bearings, so make sure to verify their state 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 Opel Astra 5 noise wheels.
Ma Opel Astra 5 makes a noise when I accelerate that ends when I stop accelerating:
Finally, if you experience a noise when accelerating with your Opel Astra 5 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 around every 120 000 / 130 000km. To check 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 symptoms, go to your auto mechanic to swap the clutch release bearings on your Opel Astra 5. Look at our article on clutch noise on Opel Astra 5 for more information.
