fuses are located drivers side near steering column & some are located dr. side , middle of van in floor level compartments.
In the fuse box.
look under the steering wheel. its a box in the upper left with all the fuses
the fuse is in the dash behind the overdrive switch
What does IAT stand for
6x8
in the rear
My 1992 E150 has a 35 gallon tank so I'm guessing your E150 is the same even though it is only one year newer than mine.
in the under hood fuse pannel it is a 30 amp mega fuse I believe it is the forth one down on the passanger side of the fuse pannel
underneath the dash on the left hand side
on the left side ,under steer wheel , it is number 20 and requires a 5 amp fuse
do not work left side trailer lamp
It's inside the air bag module and can't be replaced.