Dual tank question
Just bought my first powerstroke, it's a 1997 f350 4wd.
First question for the board.
It has 2 tanks.
It was a municipal water and lighting truck.
Someone wrote with a sharpy over the rear tank fuel filler "no fuel here"
I would like to have 2 tanks for trips of course so I need some guidance on where to start looking for the problem.
I did start by putting in 10 gallons of diesel to see if it just leaks.
Tonight I will switch the tank selector with the truck off to see if the guage reads anything.
I am worried about just switching to the back tank and going for it because of horror stories of running a diesel out of fuel and them being a real pain to get going again, bleeding injectors etc.
If the guage reads, what would be my next step?
Also, on dual tank setups, do they have a feed and return line for each tank?
I am thinking it would be some type of 4 port selector valve, an out and return for each tank, is this right?