Door Torsion

Noisy garage door-torsion spring?

My garage door is so loud when it opens and closes. I have a torsion spring and a genie screw drive garage door opener. In the owners manual for the opener, it says that if you pull the cord on the arm (so you can open and close the door manually) and lift the door up halfway and it stays open, your spring is good but if it closes, your spring is not tightened correctly. Of course mine closes. If I tighten the spring, will the door not be as loud? I keep telling my dad that and he's like the garage door is not that important. I think it's important and i'm always scared the garage door opener will break from the extra weight. Will tightening the spring make the noise go away?

there's really two problems here. a torsion spring that isn't holding up the door should be adjusted. BE CAUTIOUS. this is not a job for many do it your selfers. an unbalanced door will cause undue stress on an opener and can cause noise issues. more often, it will just shorten the life of the parts, in your case, the carriage.
the more likely cause of the noise is the opener itself. screw drive are notorious for sounding like a freight train. try spraying some silicone or oil on the screw, preferably while it is spinning. DO NOT use wd40, it's a terrible lubricant. that will probably reduce the noise somewhat but it will come back. once they become noisy, the damage is already done. the steel screw eats away at the aluminum housing and creates extra room which allows the screw to rattle back and forth. keep it lubed and you'll be fine.
if you would consider calling a door company to adjust the spring and lube the opener, expect to pay around $80 or so depending on where you live. probably money well spent.