When you identify abnormal noises on your GMC Terrain you tend to concerns about them. Specifically when you feel a noise when you accelerate on your GMC Terrain. It is immediately assimilated to an engine issue and can therefore be serious. As we know that you do not take these disorders lightly, we have decided to compose this content page to support you find the causes and eradicate this matter as quickly as possible. To do this, we will first see what are the causes of a high pitched noise when accelerating with my GMC Terrain, then what is a whistling or ratling noise at the acceleration of my GMC Terrain, then the origins of a noise that intensifies during acceleration and at last a noise that ends when I stop accelerating.noise-when-acceleratinggmc-terrain

Ma GMC Terrain makes a high-pitched noise when I accelerate:

If your GMC Terrain produces a loud noise when you accelerate, it is quite possible that the alternator belt is the reason of your issue. You will need to establish if this noise happens suddenly and if it can stop as it started. The alternator belt is a wearing part that is utilized to carry power to the secondary components of your GMC Terrain’s engine and although it is less vital than the timing belt it can induce engine problem if it stops working. 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, examine the state of your belt and its tension. If it causes this acceleration noise on GMC Terrain, go to your auto mechanic.

Ma GMC Terrain 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 GMC Terrain, it is conceivable that your turbo is screwing up and some of its elements are at the end of their life. Examine it and change it if it is the reason, otherwise you risk blockage your engine in the long run. If you find out this blowing or whistling noise on your car, feel free to consult this content about turbo noises on GMC Terrain, 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 GMC Terrain, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the whole air supply system from your air filter to your engine to discover the origin of this acceleration sound.

Ma GMC Terrain 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 GMC Terrain gets loud, then you will have to check the rolling parts of your vehicle. Indeed, if this loud noise does not appear when you iddle, it is surely connected to your transmission, and, in general, to your wheels. The most basic reason is the state of your bearings, so make sure to examine their condition to be sure it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to GMC Terrain noise wheels.

Ma GMC Terrain generates a noise when I accelerate that ceases when I stop accelerating:

Finally, if you experience a noise when accelerating with your GMC Terrain 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 changed almost every 120 000 / 130 000km. To test it, you just have to see if you have more difficulty than usual 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 technician to swap the clutch release bearings on your GMC Terrain. Look at our article on clutch noise on GMC Terrain for more information.