car vibration severe, when braking, when slowing down. need help please.
With the small amount of info you gave use, I am guessing you are not able to properly check out this, more than likely, very easy problem to figure out that you are having…
Have you tried taking it to a repair shop to have it checked out???
Could be a loose steering/suspension part(s), separated tire(s), or a few other things, but more likely is very warped brake rotors…
If you are unable to find the issue yourself, then have a shop check it out ASAP, could be a safety thing…
If this happens only with braking, then it might be your brake rotors are warped. this would cause a pulsing feeling on the brake pedal and a vibration. the worse the warp is the worse it will feel.
Another vote for warped brake rotors. Most shops can quickly & pretty easily make the necessary measurements. As mentioned above, needs to be addressed asap. If car seems generally unsafe to use, have it towed to your shop.