[Huey36]

does anyone know what amp the inline fuses are for the 1990 dodge d350 under the hood harness?

 

[9297oldram]

Are you talking about the fusible links on the fenderwell or has someone already swapped them out for fuses?

 

[Huey36]

yes. and no one has replaced anything they hacked up the wiring so i have to fix it before it burns up another fuse box

 

[Huey36]

yes and want to get it fixed because it burnt up a fuse box because who ever messed with the wiring before i got the truck cut out a inline fuse. so i want to fix it

 

[9297oldram]

You have a very common problem and there's alot of info on this and also replacing with fuses. Here's one thread https://www.cumminsforum.com/forum/89-93-non-powertrain/2201802-fuse-link-delete.html

 

[9297oldram]

There's another similar Thread about replacing the fusible links, the good thing your 90 doesn't have as much wiring under the hood as a intercooled truck.