Was driving home truck and the dash lights got super bright same for the headlights every light on the dash came on and windshield wipers started running full speed then stopped pulled over and the smoke stopped
heres what’s not working
dash lights
radio
gauges(just volt meter)
windshield wipers
basically no power in the cab

headlight switch didn’t feel hot and nothing looks burned
fuse box has 2 burned spots and when you put a fuse back in it blows insta

ntly

 

What do the fuseable links under the hood look like?

If nothing pops out start looking in the area the smoke came from.

 

 

What year truck? how do the wires look on the other side of the fuse box, are any burnt. from the looks of the power wire on your alternator, you had a direct ground in a major power wire somewhere. As Oliver said check the fusable links at the ducksfoot to start, if it is an older truck with a voltage reg on the firewall, are the wires melted to it as well?

 

The early '92s had a voltage regulator right? I'd check that like nonrev said, if you have one. X3 on the fusible links on the driver's side fender like both said. Looks like the alternator is shot by those pictures - or at least compromised.

Always a good idea to relay the headlights or install LEDs to eliminate a known electrical weakness/trouble spot.

 

‘91.5 was the last year with a VR And it is the only model with a PCM AND a VR.

His ‘92 would have come from the factory with a PCM.

 

Wiring all looks good no burns or melted wires anywhere in the cab besides that one fuse
i have a external voltage regulator hooked up on the truck.

 

The fuseable links are on the driver side inner fender… Check those. They come out of the “ducks” foot looking piece.
Lots of thread on fixing them here on DTR.