It is never pleasant to perceive a sound that you don’t know where it comes from. So, what if you find a gearbox noise that remains on your Subaru Legacy? It is most likely to be a minimal concern, but before making sure of that, it is best to do a few checks. Our staff has written this article to help you to fix it. First, we will see what the sources and different gearbox noises can be on Subaru Legacy, and second, what are the solutions available to you. 
The distinct noises and their origins
A gearbox / your transmission is the necessary part of the transmission, it is linked to the clutch that will release the engine force on the gearbox systems. Listening noises from your Subaru Legacy’s gearbox is practically never a good signal, its fix is pretty much impossible to perform due to the lack of skilled mecanician and its replacement demands a heavy expense. The benefit is that generally its life expectancy after a first noise is quite long, which offers you time to prepare the fix, but it is fundamental to check instantly what is your specific concern.
Your Subaru Legacy transmission generates noise in neutral
If you experience a gearbox noise even when you are in neutral, it shows that the gearbox’s internal components are already well worn and that you will have to swap it fairly quickly. Indeed, if you are not even with a gear on and it produces noise, the pinions must already be at the end of their life.
You hear a squeaking, a humming noise at the time of the gear shift
If you are sadly hearing squeaks, or humming noises when you change the gears of your Subaru Legacy, 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 indication of a gearbox which is nearly good to be replace. If you have the feeling after examining that the noise comes from the clutch and not the gearbox, we recommend you to browse this content to be able to find the causes and solutions to a clutch noise on Subaru Legacy.
You experience a whinning or hummin sound from the gearbox of your Subaru Legacy
Finally, if you hear a noise almost like a humming or whinning sound on the transmssion of your Subaru Legacy, it is very often the case that the gearbox of your Subaru Legacy lacks oil. Indeed, if it lacks oil, the parts will be exposed and grind agaisnt each other. In addition, each of its contacts will develop 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 appear if you do not promptly replace the oil. In this situation the oil should be black and your can can smell burning. Sometimes this kind of noises will be linked to a release bearing on Subaru Legacy, don’t hesitate to check out our content.
The solutions available if you feel a gearbox noise on your Subaru Legacy
- Check the gearbox oil of your Subaru Legacy via the level gauge and reflect on changing it if the oil is black
- Use the double clutch to try to make it last till you’re able to swap 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 technicians have the capability to replace damaged parts in your own system, they will almost always offer you a standard exchange.
