When you come across uncommon sounds on your Mazda CX 9 you tend to stress about them. Especially when you feel a noise when you accelerate on your Mazda CX 9. It is automatically assimilated to an engine motor trouble and can therefore be serious. As we know that you do not take these disorders lightly, we have decided to prepare this content to support you find the causes and wipe out 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 Mazda CX 9, then what is a whistling or ratling noise at the acceleration of my Mazda CX 9, then the origins of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating.noise-when-acceleratingmazda-cx-9

Ma Mazda CX 9 makes a high-pitched noise when I accelerate:

If your Mazda CX 9 generates a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your trouble. You will need to establish if this noise occurs abruptly and if it can stop as it started. The alternator belt is a wearing part that is used to supply power to the secondary components of your Mazda CX 9’s engine and although it is less important than the timing belt it can induce engine failure if it stops working. This sound may be a indicator 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 Mazda CX 9, go to your mechanic.

Ma Mazda CX 9 makes whining noise when I accelerate:

  • Rattling or whistling noise generated by the turbo
  • If you have a power loss that comes with the rattling noise when you accelerate with your Mazda CX 9, it is plausible 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 discover this blowing or whistling sound on your car, feel free to consult this article about turbo noises on Mazda CX 9, if you would like more information.

  • Humming noise caused by air leakage
  • If, on the other hand, you do not get any power loss due to an humming noise on your Mazda CX 9, 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 origin of this acceleration sound.

Ma Mazda CX 9 generates 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 Mazda CX 9 gets loud, then you will have to check out the rolling parts of your automobile. In fact, if this loud noise does not surface when you iddle, it is surely linked to your transmission, and, in general, to your wheels. The most regular reason is the state of your bearings, so don’t forget to verify their condition to make sure it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to Mazda CX 9 noise wheels.

Ma Mazda CX 9 produces a noise when I accelerate that stops when I stop accelerating:

At last, if you experience a noise when accelerating with your Mazda CX 9 and this noise which could be a cliking sound tends to stop 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 changed almost 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 technician to change the clutch release bearings on your Mazda CX 9. Look at our article on clutch noise on Mazda CX 9 for more information.