my truck caught fire a week or two ago i changed all the wiring harnes cap plug wires and every thing else that burt up the truck started then quit . will the ground cables that run from the body two the motor i think there are 3 of the would they make it not start . the truck will spin over vut wont crank any help please

 

No, If the engine is trying to crank but, won't turn over then it's not the ground. Where was the fire at?

 

the fire started from the fuel line that feeds the injectors.mostly fire was at the distrubter.