I hear a very bad noise that I think is coming from the transmission. It might be the bearings.
Depending on whether you have a manual or an automatic transmission will determine what the issue is. Also, a description of the noise would help. Most of the time if you have an issue with the manual transmission that causes noise it is due to a bearing failure. This can cause some rattling and grinding noises. If it has an automatic transmission, though it can have a bearing issue, the most common issues are worn internal clutches causing rattling or a broken sun shell that can cause popping and clicking noises. You need to take the vehicle to a transmission specialist to have it diagnosed.
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