In the glove box...
My 1991 E350 Fuse diagram is in the owners manual.
Owners manual
The book on my 1998 Ford E350 says to use 5W-30.
On my 1989 E350 motorhome, I had a weak fuel pump near the fuel filter. I replaced that and the problem went away. The pump in the tank was fine.
I if it's a truck it's a F350, an E350 is a van, motorhome or cube van (Econoline) net weight is about 3000kg, gross is about 5000kg.
1997 ford moterhome E350 with a V10 Triton engine My AC will not switch over to heat
Below and to the left of the steering wheel , by the brake pedal Remove the panel cover to access the fuses ( according to the owners manual )
passenger side below dash
My 1997 e350 has 6x8
Answerlocation of fuse box on a 1993 ford vanThere is a diagram in the owners manual (page 125). Check outhttp://vehicleownersmanuals.blogspot.com/ to download it for free.
The fuse panel diagram can be found inside the cover of the fuse box. It can also be found in the cars owners manual.
7-8 mpg if your lucky.