Buy a set. They aren't very expensive in a set then you have them all. I don't know the exact size now, but I used the same type disconnet tool I used on my AC lines. You can buy a cheap set of hard plastic ones for not much $$. If you live by an Auto Zone or similar, you can "rent" them free, just pay a deposit.
I am having trouble finding the fuel pressure relief valve on my 1997 F150 pickup.
most ford truck fuel filters are on the frame , drivers side near the gas tank.
an ordinary crescent wrench will work just fine
It does no harm to disconnect the battery when working on a vehicle but in general no, you do not need to disconnect them to change a filter.
Inside the fuel tank
1997 ford f150 fuel pressure specs
The fuel filter on the 1997 Silverado is located inside of the fuel tank.
An 08 F150 Harley Edition does have a cabin air filter located on it. Furthermore, the F180 Harley Edition has a fuel filter located in the engine compartment.
You will need a special tool to release the locks for removing the filter. Your local auto parts store will have it probably in stock for purchase or rent. Note, be aware fuel system will be under pressure.
How do you change a fuel filter in a 1997 Honda Prelude
Where can I locate the fuel filter on a 1997 Nissan Pathfinder?
it could be your fuel filter or fuel pump, on most f150's there are 2 fuel pumps...1 in the tank, 1 on the fuel rail.