It is never enjoyable to notice a sound that you don’t know where it originates from. So, what if you find a gearbox noise that lasts on your Scion tC? It is most likely to be a minor concern, but before making sure of that, it is best to conduct a few verifications. Our staff has made up this content to help you to solve it. First, we will see what the sources and different gearbox noises can be on Scion tC, and second, what are the solutions available to you. 
The distinct noises and their origins
A gearbox / your transmission is the essential part of the transmission, it is coupled to the clutch that will release the engine pressure on the gearbox systems. Finding out noises from your Scion tC’s gearbox is rarely a good indicator, its repair is nearly impossible to carry out due to the lack of specialized mecanician and its replacing involves a heavy expense. The advantages is that generally its life expectancy after a first noise is quite long, which gives you time to plan the repair, but it is necessary to check immediately what is your exact concern.
Your Scion tC transmission makes noise in neutral
If you encounter a gearbox noise even when you are in neutral, it means that the gearbox’s internal parts are already well worn and that you will have to replace it quickly. In fact, if you are not even with a gear on and it generates noise, the pinions must already be at the end of their life.
You experience a squeaking, a humming noise at the time of the gear shift
If you are sadly experiencing squeaks, or humming noises when you switch the gears of your Scion tC, 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 a sign of a gearbox which is nearly good to be change. If you have the feeling after verifying that the noise comes from the clutch and not the gearbox, we suggest you to consult this content page to be able to find the origins and solutions to a clutch noise on Scion tC.
You encounter a whinning or hummin sound from the gearbox of your Scion tC
Finally, if you experience a noise almost like a humming or whinning sound on the transmssion of your Scion tC, it is very often the case that the gearbox of your Scion tC lacks oil. In fact, if it lacks oil, the components 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 appear if you do not as soon as possible replace the oil. In this case 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 Scion tC, don’t hesitate to check out our content page.
The solutions available if you feel a gearbox noise on your Scion tC
- Check the gearbox oil of your Scion tC 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 mechanics have the capability to replace damaged parts in your own system, they will almost always offer you a standard exchange.
