I need to replace the fluid line for the ac. I got the line but it looks like it take a special tool to seperate it from the other line and the firewall. Does anyone know what tool to use or some way to pull them apart?

 

Same tools as used for fuel lines on alot of vehicles most of them are plastic, it just fits around line and you slide it into the fitting to push the spring back and yank them apart. Your local auto store should have a set pretty cheap.