either your belt(s) or brakes
most likely
A vehicle's starter will being making a loud screeching noise if it does not align properly with the flywheel. It slams against the flywheel and grinds against the surface.
A slipping drive belt is one possibility.
It could be a couple of things but by tour description of a screeching sound, it sounds like it could be the fan out of alighnment, which is pretty common
you have a bad alternater or belt
a screeching noise
it might be that the wheel is loose or chech your car brakes they might be screeching on the brack disk
why does my starter make a loud screeching noise when i start it?
Eagles make a screeching noise
Fruit bats.
good chance the fan belt is slipping when driving may need tightning up this wouold cause a screeching noise.
fan clutch
they make a screeching sound