Do both tanks act the same ? If so you may need a pump . You may need to look for leaks on the draw side too .I'm sure this has been discussed in here but I have a 1997 F250 7.3 and I am having an issue with the truck idling rough and then it runs out of fuel. When I open the fuel bowel, there is no fuel. I know the 2000 model has two screens in the sending unit that usually get dirty and then they have poor performace. Does my 97 have the same sending unit with the screens? I am assuming this is why my truck idles rough and then cuts out. No fuel due to dirty screens.... Can some one verify my suspicion or am I wrong?
Don't want to drop the tank if I don't have those screens. Also, I have a full take of diesel!