Car making a horrible noise.

That sounds like a strut or strut mount. When you replace a strut you should replace them in a balanced fashion. i.e., replace them in pairs or all 4 at a time. Don't just replace one. The other source for that type of noise is a sway link. Those are easy and cheap to replace. (they cost about $15 apiece and you have two up front). Replace your struts and sway links and you'll think your driving a new car.