My l3830 starts up runs fine for about an HR or 2 then it dies is not over heating it's not losing power we have went threw all the safety switches they all in working order but when it dies if your quick enough you hit key switch tuning it off then back on you might have to do it several times or shut it down and let set for an hr the service shop say fuel problem so we serviced the fuel system new filters cleaned collector checked everything but still does it and when I say injector pump solenoid I get laffed at but I know something is wrong with because when it does the dieing thing some times you can hear the solenoid rapid click or not at all not sure if it it is the solenoid or the key switch it's self