Re: Help Needed
It is easier to troubleshoot if the problem is manifesting itself at the time, and then check systems to see what is not functioning. Other than that it is a matter of trying to induce the problem or locate a the cause (loose ground wire, pinched fuel line, abraded wire...) by inspecting all relative connectors...
The issue most likely is not related to wiring in my opinion - if it died on you while running and especially driving on bad roads, then I would suspect wiring - but a restart problem is a different matter.
Were these cold restarts or hot? Does it start normally when it does start or does it take several cranking rotations before it starts and then runs unevenly for a short time.
On the 6.0 I would be suspect of the high pressure oil lines, which if they leak (internal leak you cannot see) will make it hard for restart but will still run once started.
Get a can of Starting Fluid (I can hear all the panic screams now) and if it does not start and leaves you stranded - see if the Starting Fluid gets you going - confirmation that it is not an electrical problem.
Four time Baja 1000 winner, four time Baja 500 winner. Solo'ed the Baja 1000 to LaPaz/Cabo twice.
4-Wheeling since 1972, Desert Racing since 1989.