When you notice abnormal sounds on your Scion xB you tend to stress about them. Especially when you feel a noise when you accelerate on your Scion xB. It is instantly assimilated to an engine motor problem and can therefore be serious. As we know that you do not take these disorders lightly, we have decided to compose this document to support you find the causes and get rid of 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 Scion xB, then what is a whistling or ratling noise at the acceleration of my Scion xB, then the sources of a noise that intensifies during acceleration and to finish a noise that ceases when I stop accelerating.
Ma Scion xB makes a high-pitched noise when I accelerate:
If your Scion xB makes a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your problem. You will need to determine if this noise occurs suddenly and if it can stop as it started. The alternator belt is a wearing part that is utilized to bring power to the secondary components of your Scion xB’s engine and although it is less important than the timing belt it can induce 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 at fault. In any case, check the condition of your belt and its tension. If it causes this acceleration noise on Scion xB, go to your technician.
Ma Scion xB 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 Scion xB, it is conceivable that your turbo is declining and some of its elements are at the end of their life. Verify it and change it if it is the reason, otherwise you risk blockage your engine in the long run. If you hear this blowing or whistling sound on your car, feel free to read this content about turbo noises on Scion xB, 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 Scion xB, 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 locate the starting point of this acceleration sound.
Ma Scion xB 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 Scion xB gets loud, then you will have to check out the rolling parts of your car. In fact, if this loud noise does not occur when you iddle, it is surely in connection with your transmission, and, in general, to your wheels. The most basic reason is the state of your bearings, so make sure to check their condition to ensure that it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to Scion xB noise wheels.
Ma Scion xB generates a noise when I accelerate that ceases when I stop accelerating:
To finish, if you experience a noise when accelerating with your Scion xB and this noise which could be a cliking sound tends to end 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 evaluate 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 symptoms, go to your auto mechanic to swap the clutch release bearings on your Scion xB. Look at our article on clutch noise on Scion xB for more information.
