Hi everyone, im new to the site and needing some help. I have 97 5.4 liter xlt editition and its been set up for about 2 years. Juststarted driving it again and doing the basic need to dos to it and Im stumped on what would be the best way or correct way to backflush the cooling system. Is there a correct way in order to flush entire system? Please help if anybody has more knowledge on this. thanks