A bad transmission. The sound is from metal grinding on eachother.
Cause you don't know how to drive
if its a front wheel drive vehicle then it could be the axels
Bad wheel bearing or defective brake pads.
Check your brakes(pads and rotors)
check the drive axles they could be bad
Either you tire is rubbing or if its a front wheel drive it could be you "CV" axle's... Other than that i don't know i hope that helps?
If you vehicle is front-wheel drive, more than likely, that grinding crunching sound when you turn is coming from the CV joints.
check the U joints in the drive shaft
OK. If you are sitting on a hill more than 15 degrees, if you do it will make that grinding sound. in most car booklets say on a Hill 15 degrees or more put it in neutral than apply the emergency break. and you do not need to be at any speed when putting it into park.
A lot of times the grinding sound that is heard when going over bumps is actually the car scraping the cement. If it is not a serious problem then the best thing to do would be to drive slow over the bumps.
sound like a problem with drive shaft if you feel it on floor
you have got to make sure your not rolling