Seating area, driver side, to the left hand side of steering column, clipped to the instrument panel, below the fuse panel.
Under the dash board on the left side of the steering column.
Where is the flasher on a 1984 E350
Look on the top of the steering column just under the steering wheel Push down ON Push again - up - OFF
Checkturn signal flasher
The tank size on the 1998 e-350 is 35 gallons, 3 gallons of this capacity is in reserve for emergency low fuel occasions Total is 35!
Hazard Relay is located: Front seating area, driver side, driver side of steering column, behind lower dash panel, mounted on rear of fuse block. Turn Signal Flasher Relay is located: Front seating area, driver side, driver side of steering column, under dash, mounted in upper left corner of fuse panel
in the tank
It won't have a relay. Usually it is the switch, or the fan motor that goes bad.
I'm working on it right now. It's good but turns and 4-ways not working. Oh, it's located under dash w/ fuses. It is held by a metal clip. You need to wedge it out of the clip. Connector is on engine side of relay. It's black.
My 1998 E350 takes 6.4 litres, just changing last night
electrical
The book on my 1998 Ford E350 says to use 5W-30.