i have 2002 ford f250 w 7.3 powerstroke.it has a dei remote start,it works intermittently,most of the time it will start the truck and after 10-15 sec of run time the truck shuts off.it automatically restarts but shuts off again.my key fob seems to also fade in and out(door lock controls).i removed both neg battery cables to reset the system,which helped for a little while but now were back to the same old problem.it seems like when the truck is already warm it starts and runs like it should,looking for help