Thanks for the info: real quick, the plud was untouched since the truck was manufactured and worked prior to me taking it apart.
So, yesterday after the no start (and I did have GP burn-thought the FSS went bad) I pulled the plug apart, sprayed WD40 and used a little brass brush and compressed air to blow it all out. But it together and she fired right up!
What do you think about proper sized, insulated push/pull-bullet type connectors for those bigger wires? They usually make a strong connection and pull apart if needed. It would be the same type of original connector minus the actual plastic case.
Any decent sized connector would work. The glowplug wires can pull way over 100 amps when they are glowing, so those large wire connections are under a lot of strain. Any heat created at the connection means voltage drop, which means less power to the glowplugs.
I do like some sort of disconnection means for those wires. If you ever have to do any engine work, like pulling the pass side valve cover off, it's nice to be able to unplug all those wires and move them out of the way.
One day you may have a problem with your running lights not working. Another common failure at the headlight switch, same scenario; Too much load on one connection which eventually melts the tan wire feeding the running lights.