Older road bike: squeaky crank? I have an old Free Spirit road bike. It's in good shape and runs fine, but I started noticing that when I'm going uphill or pedaling in a high gear there is a squeaky sound coming from what seems to be the crank.

Any tips on fixing it or could it be another issue altogether?
I noticed my crank making a noise when I would crank hard, and it ended up being the pedal. It was the cheap plastic pedals that came with the bike (before I switched to clipless), and the pedal itself was starting to break. It would bend when I was cranking hard, and it finally broke on me (thankfully, just down the street from my house).

So, I would check the pedal, and check the bolts for the whole area to make sure everything's tightened down properly.