Engine is knocking sounds like its coming from the piston covers. Knock on solid wood or sounds like that, it speeds up when I accelerate and continues when I idle, any thoughts on it? Getting the battery checked tomorrow no power is getting to anything and idk of the alternator is put jumped it once I ran turned it off and back on again two days later all charge was gone. I don't think it's the fuses they all checked clear and I doubt it's the relays please give me feed back on what it could be.

 

Would not surprise me if the alternator is making all the noise.