When I press the gas my hummer makes a rattling noise do I have to replace the air compressor?

Hello, it is hard to know what noise you are hearing from my chair. I will say, though, that if the noise is the air compressor turning on -- they can indeed be loud. This may be normal, or could be a sign of system wear. Is there any concern present other than the noise? I would recommend a trained ear closer to you have a listen and give advice.