You didn't say what year, but most to my knowledge are here. Left side engine bay, behind carbon fiber panel if equiped, towards front there is a relay/fuse box. Should have identifier chart on top or look in your owners manual for location within box.
It's a 2001 6.0. I would think the fuel system wouldn't change much between years. When you say left side are you referring to the driver or passenger side? I don't recall seeing a schematic for the fuse box in the engine bay though...
Thanks for your help.
You have a late car and honestly I'm not positive on the location. I will check for you on Monday if you can wait. The location I gave you I know is good through MY2000. But there were some changes for MY2001. It will be drivers side I was referencing to.
You have to access them from under the car or wheel well. You will have a triangular black aluminum panel that is bolted on below the tank, next to the rear jacking point. This is the best way. Remove it and you will find both.