I get a Schematic for the Fuse Box on a 1990 Ford 350 Oct 09, 2007Where can I get a Schematic for the Fuse Box on a 1990 Ford 350 Econoline Van? - Answered by a verified Ford Mechanic I get a Schematic for the Fuse Box on a 1990 Ford 350 Econoline Van? Customer Question. i have a 1990 ford econoline van that idles up and down and when you put it in park it dies sometimes, LOOKING FOR FUSE BOX DIAGRAM FOR 1990 FORD E350 SOURCE: fuse box 1992 ford econoline I have a 94 E350, and mine has 2 fuse boxes. One is under the steering column at the driver's seat, by the brake pedal. The other is under the hood, when you're facing the van it's just a little to the left and below the driver's side battery.