i just change my batery and now i have a new problem. when i press the gas and i hear a click noise come from the tiries. it is not cv joint. could it be the rack opinion(sorry for the spelling)

 

Are you sure it is the tires and nothing else? Do you have a CAI? I heard of those with the Injen one's metal pipe taps against opening where the air filter itself goes in to and can be easily corrected. Installing a new battery would not cause tires to "tap." Maybe you hit something or loosened something when placing the battery in and it sounds as if there is tapping coming from the tires when it is something in the engine bay. Hope you didn't leave a tool in there just before closing the hood



MisterT