There is this hose with a metal tube at the end of it that has come loose from the grommet it goes into and its just squirting coolant everywhere. Anyone know the name of this hose or the grommet, or a way to stop it from leaking? Thanks!

 

Welcome to the forum

That's the hose for the PCV Valve, there is no coolant in it, but...............................

Some Rangers did have a "heated" PCV Valve with small coolant hoses hooked to a horse shoe shaped plastic tube
Heated PCV Valve looks like this: https://i.ebayimg.com/thumbs/images/...EuO/s-l200.jpg

Its possible thats where its leaking

In your top picture you can see 2 smaller coolant hoses "T'ed" off the Heater hoses, follow those hoses to your leak