It is never pleasurable to discover a sound that you don’t know where it originates from. So, what if you specify a gearbox noise that continues on your GMC Terrain? It is most likely to be a minimal matter, but before making sure of that, it is best to execute a few checks. Our team has written this content page to help you to resolve it. First, we will see what the sources and different gearbox noises can be on GMC Terrain, and second, what are the solutions available to you. gearbox-noise-gmc-terrain

The several noises and their origins

A gearbox / your transmission is the essential part of the transmission, it is linked to the clutch that will release the engine force on the gearbox systems. Listening noises from your GMC Terrain’s gearbox is practically never a good sign, its fix is pretty much unachievable to carry out due to the lack of specialized mecanician and its replacing demands a heavy expense. The advantage is that generally its life expectancy after a first noise is quite long, which gives you time to arrange the fix, but it is important to verify instantly what is your specific matter.

Your GMC Terrain transmission makes noise in neutral

If you encounter a gearbox noise even when you are in neutral, it shows that the gearbox’s internal mechanisms are already well worn and that you will have to swap it in short order. Indeed, if you are not even with a gear on and it makes noise, the pinions must already be at the end of their life.

You listen a squeaking, a humming noise at the time of the gear shift

If you are unfortunately the subject of squeaks, or humming noises when you change the gears of your GMC Terrain, it is unfortunately a good bet that it is your gears that are starting to fatigued. If this sound is not limited to passing the first gear and keep going when you drive and shift other gears. This is most likely an indicator of a gearbox which is nearly good to be replace. If you have the feeling after looking at that the noise comes from the clutch and not the gearbox, we advise you to have a look at this document in order to find the origins and solutions to a clutch noise on GMC Terrain.

You encounter a whinning or hummin sound from the gearbox of your GMC Terrain

Finally, if you listen a noise close to a humming or whinning sound on the transmssion of your GMC Terrain, it is very often the case that the gearbox of your GMC Terrain lacks oil. Indeed, if it lacks oil, the elements will be exposed and grind agaisnt each other. In addition, each of its contacts will generate chips or metal dust that will mix with the oil and develop even greater resistance to mechanisms that are already worn out, a snowball effect will show up if you do not as soon as possible change the oil. In this situation the oil should be black and your can can smell burning. On occasion this kind of noises will be linked to a release bearing on GMC Terrain, don’t hesitate to read our document.

The solutions available if you experience a gearbox noise on your GMC Terrain

  • Check the gearbox oil of your GMC Terrain via the level gauge and reflect on swapping it if the oil is black
  • Use the double clutch to try to make it last till you’re able to replace the gearbox, this will limit the already advanced wear of your gearbox and limit the wear of the pinions.
  • Start looking for a second-hand or new gearbox, very few professionals have the capacity to change damaged parts in your own system, they will almost always offer you a standard exchange.