no start

[SethA]

i am working on a 92 w250 the wiring harnes for the engine shorted out and some the of the wires melted and became a molten mass of wire and plastic i spliced the wires and it started but wouldnt charge so had the alternator tested and its working fine putting out 15 volts . i put the alternator back on and the truck wont start checked all the fusible links for continuity with my tester and they are fine . all the grounds are fine . could the pcm be fried does it have anything to with the starting system as far as the starter goes?

 

[stoneagemaxx]

when my computer was fried mine started fine so i'd start looking for something else

 

[ZedMikey]

Is it not cranking or is it cranking and not firing up?

 

[stoneagemaxx]

ya i should of asked that dummy me i have three 1st gens and dident even think of it hope the best you came to the right place lots of knowledge here

 

[dodgenstein]

If automatic, maybe neutral safety switch. If 5 speed, clutch switch.

 

[JHumphries]

If nothing electrical has any power, then unless there are several faults, the problem has to be near the battery, or the group of fusible links going into the cab.

I lost all power in my truck, and it turned out to be a tight, but not electrically connecting negative terminal.

 

[tugboat1st]

Mine didn't charge after jump with a welder. It started and ran though. The ecm is also the voltage regulator. After changing same, charging was normal again.