Audio in my MacBook Air not Working

My audio in my MacBook Air Late 2010 13" is not working. Everything else works fine like the keyboard and the screen. Turning the computer off and plugging in a headphone and taking it out multiple times fixes the problem but it comes back at random. I was thinking of replacing the IO Board to fix this which I think I can handle given I've taken apart other non-Apple laptops which still require caution when doing repairs on them. Would that fix my problem or would it still come back?