Guy,

There is a black box ( aren't they all..) in the driver's side front, near the a/c dryer. Look for the wire from the glow plugs going into it. You have to remove a cover and the fuse is inside. If I remember it, the fuse is a dogbone shaped piece of flat metal about 1" long by 1/4" , maybe 3/8" wide. The fuses are cheap, so try a new one. I had one with a hairline crack that would test ok continuity cold, then fail in startup mode.

If you have a couple of glow plugs out the inside light will not light either.

Chuck