Water top in RADIATOR - cars?

Hi
is it still required to top up water in the radiator of my CAR - 2004 FORD CARD -
or not required.
is it only in the olden cars that refill is required or how does the new one work?

What does it mean when a guy drives up and yells, Yo?

So just now I was walking my dog and a guy drives up and yells, "Yo!" and then drives away.

I'm 14 and asian and quite short for my age. Short cropped hair, I'm wearing a blood red t-shirt, short jeans (not too short) and sneakers and listening to music. At the time my dog won't budge.

Dude driving in a black ford (truck kinda) drives up, rolls down window and yells "Yo!" looks around in his 18's. Not sure if it was just him…

What does this mean? I mean… He's an idiot but… I'm confused.

He's giving me mixed signals?

I met this boy through Instagram and he liked my stuff and I liked his so I dm'ed him and told him I thought he was cute we exchanged numbers. He's friends with my friends boyfriend so I know he's not fake or weird that's why I asked for his number. I always have to text first but he wants to hang but he has baseball and is busy right now. He likes the same things i do hunting fishing and sports. He said this summer we should fill up is ford and go skinny dipping in the bed of it but I don't understand why I always have to text first if he says stuff like this but doesn't text me first. I'm confused what should I do?!

Car alternator issue - how to fix it?

Hi
i recently got the alternator replaced, new one, in my 2004 ford card
but was getting a motor running like noise. When am idling or on slow speed.
why is that
anything to be replaced internally.
i thought alternators gets replaced as a whole.
what to look for when buying a alternator and which brand is better.