When you find out about irregular sounds on your GMC Sierra you tend to stress about them. Especially when you feel a noise when you accelerate on your GMC Sierra. It is immediately 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 publish this content to support you find the causes and get rid of this matter as quickly as possible. To do this, we will first see what are the reasons of a high pitched noise when accelerating with my GMC Sierra, then what is a whistling or ratling noise at the acceleration of my GMC Sierra, then the sources of a noise that intensifies during acceleration and to finish a noise that stops when I stop accelerating.
Ma GMC Sierra makes a high-pitched noise when I accelerate:
If your GMC Sierra makes a loud noise when you accelerate, it is quite plausible that the alternator belt is the cause of your problem. You will need to identify if this noise happens suddenly and if it can stop as it started. The alternator belt is a wearing part that is used to carry power to the secondary components of your GMC Sierra’s engine and although it is less important than the timing belt it can generate engine troubles if it fails. This sound may be a symptom of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. In any case, verify the condition of your belt and its tension. If it causes this acceleration noise on GMC Sierra, go to your auto mechanic.
Ma GMC Sierra makes whining noise when I accelerate:
- Rattling or whistling noise generated 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 GMC Sierra, it is plausible that your turbo is screwing up and some of its components are at the end of their life. Verify it and swap it if it is the cause, otherwise you risk clogging your engine in the long run. If you hear this blowing or whistling sound on your car, feel free to read this document about turbo noises on GMC Sierra, 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 GMC Sierra, 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 GMC Sierra 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 GMC Sierra gets loud, then you will have to think about the rolling parts of your vehicle. In fact, if this loud noise does not surface when you iddle, it is surely in connection with your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so make sure to verify their condition to be sure it is not the reason of this loud noise when you accelerate. If not, go to this article about the noises related to GMC Sierra noise wheels.
Ma GMC Sierra produces a noise when I accelerate that ceases when I stop accelerating:
At last, if you encounter a noise when accelerating with your GMC Sierra 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 approximately every 120 000 / 130 000km. To check 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 signs of illness, go to your auto technician to swap the clutch release bearings on your GMC Sierra. Go through our article on clutch noise on GMC Sierra for more information.
