It is never pleasurable to find out a sound that you don’t know where it originates from. So, what if you discover a gearbox noise that remains on your Toyota Highlander? It is most likely to be a minor matter, but before making sure of that, it is best to conduct a few checks. Our team has composed this content page to help you to fix it. First, we will see what the sources and different gearbox noises can be on Toyota Highlander, and second, what are the solutions available to you. 
The several noises and their origins
A gearbox / your transmission is the essential component of the transmission, it is linked to the clutch that will release the engine force on the gearbox systems. Finding out noises from your Toyota Highlander’s gearbox is never a good indication, its repair is nearly impossible to perform due to the lack of specialized mecanician and its replacement necessitates a heavy expense. The gain is that generally its life expectancy after a first noise is quite long, which offers you time to organize the repair, but it is crucial to verify instantly what is your specific matter.
Your Toyota Highlander transmission makes noise in neutral
If you experience a gearbox noise even when you are in neutral, it denotes 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 causes 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 unluckily feeling squeaks, or humming noises when you switch the gears of your Toyota Highlander, it is unfortunately a good bet that it is your gears that are starting to fatigued. If this noise 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 change. If you have the feeling after looking at that the noise comes from the clutch and not the gearbox, we recommend you to consult this article to be able to find the origins and solutions to a clutch noise on Toyota Highlander.
You experience a whinning or hummin sound from the gearbox of your Toyota Highlander
Finally, if you listen a noise almost like a humming or whinning sound on the transmssion of your Toyota Highlander, it is very often the case that the gearbox of your Toyota Highlander lacks oil. Indeed, if it lacks oil, the components will be exposed and grind agaisnt each other. In addition, each of its contacts will make 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 occur if you do not almost instantly change the oil. In this situation the oil should be black and your can can smell burning. In certain cases this sort of noises will be linked to a release bearing on Toyota Highlander, don’t hesitate to look at our article.
The solutions existing if you feel a gearbox noise on your Toyota Highlander
- Examine the gearbox oil of your Toyota Highlander 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 change 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 capability to change damaged parts in your own system, they will almost always offer you a standard exchange.
