Squeaky Crank/ or pedals?
 

Hi, I'm a newbie to this website, wondering if you could help me out on my situation. I have a SE Hoodrich 2017 complete and have only had it for a couple of months. About a month after I bought the bike, a heard a squeaking noise (sounding kind of like a high-pitched duck) coming from my sprocket/crank/ or pedal. At first, WD-40 worked, I just sprayed it, let it soak in, and the noise disappeared. But now wd-40 doesn't work. Any suggestions on how to fix or solve this problem? If you need more info, ask.
Thanks.

If it’s that new, it’s still under warranty. Take it back.
Or start replacing parts at random.
Pedals are quite easy. Remember the left has a left hand thread.
Bottom brackets generally require more specialized tools.
If you’re not planning to make a habit out of working on bikes, better leave it to a shop.

For the future, remember that WD-40 is a poor lube. Better than nothing, better than spit. But not by much.

Some cranks have what are called pinch bolts to hold them on and they can randomly loosen up making your crank squeaky. Try giving them a tighten. If that doesn't work I'd take it to a bike shop as there are too many things that also make noise.