When you observe unusual sounds on your Ford S-max 2 you tend to concerns about them. Specifically when you feel a noise when you accelerate on your Ford S-max 2. It is automatically assimilated to an engine unit problem and can therefore be critical. As we know that you do not take these problems lightly, we have made a decision to prepare this document to support you find the causes and wipe out this concern as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my Ford S-max 2, then what is a whistling or ratling noise at the acceleration of my Ford S-max 2, then the origins of a noise that intensifies during acceleration and to finish a noise that ceases when I stop accelerating.
Ma Ford S-max 2 makes a high-pitched noise when I accelerate:
If your Ford S-max 2 produces a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your problem. You will need to establish if this noise happens abruptly and if it can stop as it started. The alternator belt is a wearing part that is utilized to supply power to the secondary components of your Ford S-max 2’s engine and although it is less crucial than the timing belt it can induce engine failure if it fails. This noise 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, verify the condition of your belt and its tension. If it causes this acceleration noise on Ford S-max 2, go to your technician.
Ma Ford S-max 2 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 Ford S-max 2, it is conceivable that your turbo is failing and some of its parts 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 notice this blowing or whistling noise on your car, feel free to read this content page about turbo noises on Ford S-max 2, if you would like more information.
If, on the other hand, you do not experience any power loss due to an humming noise on your Ford S-max 2, 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 determine the starting point of this acceleration sound.
Ma Ford S-max 2 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 Ford S-max 2 gets loud, then you will have to look at the rolling parts of your car. Indeed, if this loud noise does not surface when you iddle, it is certainly connected to your transmission, and, in general, to your wheels. The most regular reason is the state of your bearings, so make sure you verify 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 Ford S-max 2 noise wheels.
Ma Ford S-max 2 makes a noise when I accelerate that ends when I stop accelerating:
At last, if you encounter a noise when accelerating with your Ford S-max 2 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 swapped almost 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 symptoms, go to your mechanic to swap the clutch release bearings on your Ford S-max 2. Look at our article on clutch noise on Ford S-max 2 for more information.
