E 350 Van V8-7.3L DSL (1988)
Fuel Return Line: Description and Operation
FUEL TANK FILLER NECK
Expansion of fuel due to temperature increases, or overfilling ("topping off") could cause fuel overflow at the filler cap when the vehicle is standing or
the cap is removed. To minimize this condition, it is recommended that the amount of fuel put in the tank when filling be limited to the automatic pump
shutoff. If vehicle has two tanks, use fuel from both tanks after fill-up to reduce fuel levels.
PUSH CONNECT FITTINGS
Push connect fittings are used to make most fuel line connections in diesel fuel systems. There are two sizes for this vehicle 9.5 mm (3/8-inch) and 7.9
mm (5/16 inch).
