When you discover unusual noises on your Infiniti QX80 you tend to stress about them. Especially when you feel a noise when you accelerate on your Infiniti QX80. It is automatically assimilated to an engine motor trouble and can therefore be considerable. As we know that you do not take these trouble lightly, we have made a decision to prepare this article to support you find the causes and eliminate this issues as quickly as possible. To do this, we will first see what are the causes of a high pitched noise when accelerating with my Infiniti QX80, then what is a whistling or ratling noise at the acceleration of my Infiniti QX80, then the sources of a noise that intensifies during acceleration and at last a noise that ceases when I stop accelerating.noise-when-acceleratinginfiniti-qx80

Ma Infiniti QX80 makes a high-pitched noise when I accelerate:

If your Infiniti QX80 produces a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your trouble. You will need to define if this noise appears 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 Infiniti QX80’s engine and although it is less vital than the timing belt it can generate engine failure if it fails. This noise may be a warning sign of a slackened belt, in which case the tensioner roller or its wear and tear may be responsible. In any case, verify the condition of your belt and its tension. If it causes this acceleration noise on Infiniti QX80, go to your mechanic.

Ma Infiniti QX80 makes whining noise when I accelerate:

  • Rattling or whistling noise generated by the turbo
  • If you have a power loss that accompanies the rattling noise when you accelerate with your Infiniti QX80, it is possible that your turbo is failing and some of its elements are at the end of their life. Check it and swap it if it is the reason, otherwise you risk clogging your engine in the long run. If you perceive this blowing or whistling noise on your car, feel free to read this document about turbo noises on Infiniti QX80, if you would like more info.

  • Humming noise caused by air leakage
  • If, on the other hand, you do not experience any power loss due to an humming noise on your Infiniti QX80, it is more than likely that you have one of your junctions or air hoses that has holes. So verify the complete air supply system from your air filter to your engine to locate the starting point of this acceleration sound.

Ma Infiniti QX80 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 Infiniti QX80 gets loud, then you will have to look at the rolling parts of your car. In fact, if this loud noise does not emerge when you iddle, it is necessarily related to your transmission, and, in general, to your wheels. The most known cause is the state of your bearings, so remember to verify their condition to make sure it is not the cause of this loud noise when you accelerate. If not, go to this document about the noises related to Infiniti QX80 noise wheels.

Ma Infiniti QX80 creates a noise when I accelerate that ceases when I stop accelerating:

At last, if you experience a noise when accelerating with your Infiniti QX80 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 cause. 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 Infiniti QX80. Look at our article on clutch noise on Infiniti QX80 for more information.