If it is vibrating at speed you have either a tire out of balance, bent wheel, defective tire with broken belt, loose wheel, defective wheel bearing, bent driveshaft, or bad CV joint. If it is vibrating at idle, you have either a cylinder miss, broken motor mount, or vacuum leak.
It could be your motor mounts (usually always slightly vibrating the car, especially when accelerating) or most likely not aligned/damaged driveshaft on rear wheel drive vehicles.
they are overtorqued.
Your car could be vibrating as a result of some disconnection in your engine. Take it to a mechanic to have it checked.
Most likely you need to change your motor mounts...
If it is vibrating on the steering wheel, you may need an alignment. If it is vibrating at the tire area you may have a bent wheel or need to have your tires check, take it to any tire shop and they can test. I had the same problem and it was a bent wheel.
Could be bad u-joints in the driveshaft.
When the car is running it appears to run fine. When stopping or car coming to a stop it feels like choking or its about to stall and the whole car is usually shaking or vibrating
Not all Altima's vibrate. If the car is vibrating, it may mean that there is something wrong with the tires.
Vibrating produces sound.
It's a vibrating dildo.
I would suspect wheel balance.
By vibrating